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Blog News
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HDDVD-Revived Joins Snipe Group Limited: A New Era for the Store

A new chapter for HDDVD-Revived

HDDVD-Revived.com is now part of Snipe Group Limited. The store you know – historic formats, firmware, manuals, and physical media – continues under the same brand, with the stability and backing of a UK limited company behind it.

Our registered details are Snipe Group Limited, 71-75 Shelton Street, Covent Garden, London WC2H 9JQ, United Kingdom. For day-to-day questions, email us at [email protected].

Your orders are safe

If you bought a digital product from us in the past, those downloads remain valid. Historic digital orders will continue to be honoured: access your files through your account as before, and contact us if anything does not appear as expected.

Any pending physical deliveries already in the pipeline will still ship. Moving under Snipe Group Limited does not cancel, reset, or abandon open fulfilment – we will complete what we have already committed to send.

Support, still here – and expanding

Customer support continues without interruption. Whether you need help with a download, a disc, firmware, or an order status, reach out and we will help. Under Snipe Group Limited we intend to offer a broader range of support: clearer paths for technical questions, order help, and format-specific guidance as the catalogue grows.

More frequent releases ahead

Alongside stronger support, we plan more frequent releases – new titles, refreshed firmware packages, manuals, and related archival products – on a steadier cadence than before. This post is the first marker of that new era: same specialist focus on optical and historic video formats, with company structure and operational capacity aimed at keeping the store reliable for collectors and technicians who depend on it.

Nothing about this change asks you to re-buy what you already purchased, or to re-register without cause. Accounts, download entitlements, and open shipments carry forward. If something looks wrong after the transition, tell us – that is exactly what support is for.

Thank you for sticking with HDDVD-Revived through the years. We are glad to keep serving you as part of Snipe Group Limited.

8KDVD Blog Format Overview Guides
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The Red Box: Packaging and Presenting an 8KDVD

8KDVD’s retail silhouette is deliberate: a red, DVD-sized case so the format reads as its own object on a shelf full of blue Blu-ray keep cases and black DVD Amarays. Packaging is part of the specification’s public face – logo placement, the project URL, and honest technical callouts matter as much as the VP9 bits inside.

Why the case is DVD-sized and red

DVD footprint keeps mailers, shelves, and existing DVD case stock usable. The red plastic (or red wrap on a clear/standard shell, depending on your supplier) is the quick visual ID. Do not ship 8KDVD in unmarked Blu-ray cases “because the disc is a BD-R”; you will train customers to look for the wrong shape.

Artwork workflow

  1. Download the official Photoshop box template (front, spine, back, QR placeholder, info box) from the project downloads.
  2. Replace key art; keep the mandatory 8KDVD branding and 8kdvd.hddvd-revived.com on the back per the current license.
  3. Fill the info box: runtime, year, cast or crew highlights, audio/subtitle languages, and which resolutions ship (8K / 4K / HD / 3D).
  4. Add a QR to your film page or catalogue entry if you use one; empty QR layers look like unfinished print.
  5. Export print-ready PDF/JPG at the template’s bleed settings; proof on paper before a full case run.

What to print on the back (technical honesty)

  • Encode profile class if it sets expectations (e.g. Standard feature vs HQ Plus short).
  • Playback note: Windows Player and Chromium HTML launcher – no claim of a mass-market set-top deck unless you ship one.
  • Media type: BD-R 25 GB / 50 GB / BD-XL as applicable.
  • Subtitle languages and whether they are soft or burned-in.

Disc face and inserts

Label the disc hub clearly with title and “8KDVD.” A bare silver BD-R in a fancy sleeve confuses archivists five years out. Optional booklets help for chapter lists and restoration notes; keep type large – this is living-room packaging, not a CD jewel booklet.

Licensing and branding checklist

Low-budget, free, crowdfunded, and many CC projects can use the artwork and tools under the project’s published free tier; larger commercial budgets owe the modest percentage fee capped in the white paper. Either way, mandatory naming and logo rules still apply. Do not slap third-party Blu-ray or generic “8K” logos on the wrap unless you hold those separate licenses – the 8KDVD marks are not a substitute for Blu-ray Association marks.

Presentation tips for demos and sales

  • Show the red case first, then the menu’s resolution switch – that sequence explains the format faster than a codec lecture.
  • Have a Standard or HQ Plus sample ISO ready so buyers can mount without waiting on a burn.
  • If the title includes 3D anaglyph, pack glasses or state that none are included.

For mail-order, double-box fragile red shells; a cracked hinge turns a careful encode into a returns ticket. Include a one-sheet with the Windows Player download path and a reminder to use UDF-capable mounts for ISOs. Collectors photograph spines – keep title typography consistent across a series so 8KDVD reads as a line, not one-off DIY.

Templates, license text, and sample boxed editions are documented on 8kdvd.hddvd-revived.com. The red box is not decoration; it is how people find the format when the spine is six metres away.

8KDVD Authoring Blog Guides
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8KDVD Encode Profiles: HQ Plus, HQ, Standard and LP

Video File Maker exposes four named encode profiles – HQ Plus, HQ, Standard, and LP – so authors can match VP9 Profile 2 bitstreams (with Opus audio) to disc capacity and runtime instead of guessing CRF values in a vacuum. Pick the profile before you spend overnight GPU time; the menu and the blank must agree with that choice.

Shared rules

  • Output family: VP9 Profile 2; audio Opus as required by the format body of standards.
  • Batches: separate SDR and HDR10 scripts – HDR preserves metadata when the source carries it; SDR batches will not invent a grade.
  • Source: export SOURCE.mp4 at full 8K (7680×4320) when the project truly is 8K; lesser masters should not wear an 8K badge on the box.
  • Media: plan against 25 GB and 50 GB BD-R, or BD-XL when you need more than a single-layer/dual-layer pair can hold.

HQ Plus

Short premium 8K. Use it for demos, shorts, and showpiece reels where bitrate beats runtime. Sister-site guidance cites roughly seventy minutes near the ~22 GB class for the 8K tier as a planning ballpark – treat that as capacity intuition, then measure your own encode. If your “feature” is two hours, HQ Plus is the wrong button.

HQ

High-bitrate mastering for 8K/4K when you want headroom without the ultra-short constraint of HQ Plus. Suitable for prestige shorts-to-mid features and for keeping 4K fallbacks looking expensive. Expect to lean on 50 GB or BD-XL blanks once runtime climbs.

Standard

The workhorse: about a 100-minute movie on 50 GB-class media. First commercial-style titles and most fan restorations should start here. Standard is also the profile you use to teach the rest of the toolchain – if Standard will not burn and play cleanly, chasing HQ Plus will only hide the same folder or UDF mistakes under prettier pixels.

LP (Long Play)

Pack longer programmes onto 25 GB blanks (or stretch capacity when you refuse a second disc). Detail and high-motion scenes take the hit first. LP is honest engineering for lectures, long concerts, or archive dumps – label the case so nobody expects HQ Plus sharpness.

Choosing quickly

  1. Measure runtime and whether you need true 8K on-disc.
  2. If ~100 minutes and one 50 GB blank → Standard.
  3. If short and showpiece 8K → HQ Plus.
  4. If long and stuck on 25 GB → LP.
  5. If mid-length with quality priority and larger blanks → HQ.

Batch discipline

Run the profile batch that matches the blank you bought. Confirm file sizes before Menu Maker; oversized HQ Plus outputs will not “fit if we omit the menu.” Multi-resolution discs often keep a hero tier at one profile and lighter 4K/HD companions – the menu must list only what exists. After encode, verify VP9 Profile 2 / Opus with your usual media inspector, then assemble UDF 2.60.

After the burn, spot-check a high-motion scene and a dark static scene at the hero resolution. Profile names will not save a bad master – soft focus stays soft – but they will stop you from promising eighty minutes of HQ Plus on a single 25 GB blank. Log the profile on an internal README next to the ISO so remasters six months later use the same contract.

Profile tables, Video File Maker releases, and the authoring guide live on 8kdvd.hddvd-revived.com. Profiles are capacity tools; use them that way and the red box will match the bits inside.

8KDVD Blog Guides Subtitles
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Adding Subtitles to an 8KDVD Title

Subtitles on 8KDVD sit in an awkward but workable middle ground: the disc UI is browser-based HTML, the video is VP9 Profile 2 with Opus, and there is no Blu-ray-style presentation graphics engine guaranteeing every deck will render the same soft-sub track. Plan for Chromium and the Windows Player, time your cues carefully, and decide early whether you need switchable soft subs or burned-in text that cannot miss.

Soft subs vs burn-in

  • Soft (SRT / WebVTT alongside the menu or player): switchable languages, no re-encode when you fix a typo, better for accessibility and multi-region discs. Depends on the player/launcher honouring the track or the HTML <track> / player API path you wire up.
  • Burn-in (hardcoded into the VP9 encode): universal – whatever opens the video shows the text – but locks language, burns bitrate on glyphs, and forces a full re-encode for corrections.

Prefer soft for dialogue; reserve burn-in for forced narrative cards you refuse to lose, or for archive titles where one language must always appear.

Timing SRT and WebVTT for browser menus

  1. Export a dialogue list from your NLE or subtitle editor with the same frame rate as the master (23.976 vs 24 vs 25 mismatches are the classic “everything drifts after reel two” bug).
  2. Author in SRT first for ease; convert to WebVTT when the HTML5 video element or launcher expects .vtt.
  3. Keep timestamps in HH:MM:SS.mmm (WebVTT) or HH:MM:SS,mmm (SRT) consistently – mixed separators break parsers silently.
  4. Cue length: aim for readable chunks (roughly one to two lines, ≤42 characters per line for living-room distance).
  5. Place cue files where Menu Maker / the launcher expects them; reference them from the menu or player config – orphan .srt files will not invent a track list.
  6. Smoke-test in Chromium: enable the track, scrub mid-film and credits. Use UTF-8; mixed encodings often fail after the first reel.

Sync tips that actually matter

  • Spot-check against a clap or a known line, not against “feels right.”
  • If the whole track is late/early by a constant, shift globally; if drift grows, your frame-rate assumption is wrong – fix the root, do not nudge every tenth cue by hand.
  • If the menu offers both 8K and 4K streams with different leaders, one subtitle file will drift on the other. Pad cues per stream or keep leaders identical.
  • HDR grades can make white text disappear on bright skies; use outlined or shadowed styles when the player allows CSS/WebVTT styling.

Wiring soft subs into the disc UI

Soft subs usually arrive as SRT converted to WebVTT, referenced from the menu page or a small config the Windows Player understands.

  • One file per language, named clearly (en.vtt, de.vtt), UTF-8 without a BOM if a browser chokes on the first cue.
  • A visible menu control: On / Off and language – do not rely on users knowing a keyboard shortcut.
  • Relative paths only – absolute C: leftovers are how living-room demos die. Watch case sensitivity when you author on Windows and test on Linux.
  • If the HTML path refuses local tracks (browser file:// security), fall back to the Windows Player path for that title or burn-in the primary language and keep soft files as a PC-only extra in a documented SUBS folder.

Accessibility without overclaiming

Browser-based disc UI means screen-reader behaviour and forced-narrative support will never match a certified Blu-ray player. Do the basics: high-contrast cues, sane reading speed, separate SDH when you can, and a menu label that says which language is active. Document on the package that subtitles are provided via the HTML/Windows playback path so buyers with exotic HTPC stacks know to test.

Legacy 8KDVD Maker accepted language codes plus SRT during its wizard; the modern Video File Maker + Menu Maker path expects you to integrate cues deliberately. When in doubt, follow the current authoring guide on 8kdvd.hddvd-revived.com, verify on both Windows Player and Chromium, and treat “works in VLC opened on the raw WebM” as a bonus – not the shipping definition of an 8KDVD subtitle.

8KDVD Blog Guides Menus
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8KDVD Menu Maker: Building Disc Menus That Switch Resolutions

8KDVD menus are HTML and JavaScript living on the disc, not a proprietary Blu-ray HDMV project. Menu Maker exists for authors who want control: background art, chapter entries, and – critically – buttons that switch between 8K, 4K, HD, and optional 3D bitstreams without leaving the launcher. Get the links wrong and users will swear the format is broken when you simply advertised a file you never encoded.

What Menu Maker produces

The tool builds the navigation layer consumed by the Universal Web Launcher and the Windows Player. Output is a menu folder: HTML entry points, assets, and wiring to your Video File Maker tiers. Smoke-test that folder in Chromium on the hard drive. If the menu fails locally, burning will not fix it.

Build workflow

  1. Clone or download 8KDVD-Menu-Maker from GitHub.
  2. Point it at the encoded video tiers from Video File Maker (HQ Plus / HQ / Standard / LP outputs as applicable).
  3. Set background art – stills around 3500 px wide or wider keep large displays from looking soft.
  4. Enter title text and button labels your audience will understand (“Play 4K”, not internal filenames).
  5. Enable only the resolution variants you actually produced. No 8K button without an 8K file.
  6. Add chapter names that match real access points in the encode when the menu supports them.
  7. Export the menu folder into the disc structure beside the media files.
  8. Open the menu HTML in Chromium; click every button once.
  9. Wrap with ImgBurn as UDF 2.60 or drop the folder into your ISO build.

Resolution switching without surprises

Multi-resolution discs are the format’s everyday flexibility: one red case, several decode targets. The menu is the contract. If Standard encode only produced 4K and HD for a long feature, the 8K button should stay off. Conversely, a short HQ Plus demo may ship 8K + 4K and omit LP entirely. Document the available tiers on the packaging back so retail browsers know what the plastic contains.

Design habits that save support mail

  • Keep the first screen sparse: Play, Resolutions, Chapters, Credits.
  • Use high-contrast text over busy key art; living-room viewing distance is not a desktop.
  • Test HDR titles with the Windows HDR path and SDR titles with HDR off – menu chrome should remain readable either way.
  • Ship launchers for the platforms you claim; do not bury index.html five folders deep without a starter.

Browser reality check

Because navigation is web tech, behaviour tracks Chromium more than a Hollywood player SoC. Local file permissions, autoplay policies, and GPU decode limits all show up as “menu bugs.” Prefer the Windows Player for demos; keep the HTML path as the cross-platform fallback (Windows, macOS, Linux, Android). Watch the master tutorial linked from the official authoring guide when the UI fields feel opaque – fifteen minutes of that footage beats guessing button IDs.

When something misbehaves, isolate layers: broken art path vs wrong media URL vs player chrome. Swap in a plain coloured background; if buttons suddenly work, your asset path was wrong. If Play still fails, the menu is fine and the bitstream path is not. Keep a known-good sample ISO from the project site as a control disc so you can tell “my menu” from “this PC cannot decode VP9 at 8K.”

Downloads and the living authoring guide are on 8kdvd.hddvd-revived.com. Menu Maker is half the modern toolchain; pair it with Video File Maker and only then argue about box art.

8KDVD Authoring Blog Guides
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Authoring Your First 8KDVD: From Encode to Burn

Your first 8KDVD should be boring on purpose: one title, one language, one encode profile, a short menu, then a verified burn. The modern pipeline is Video File Maker → Menu Maker → UDF 2.60 image/burn. Skip the legacy all-in-one wizard unless you are reproducing an old demo.

What you need on the bench

  • Source master: full-resolution SOURCE.mp4 (7680×4320 when you truly have 8K). Keep HDR10 metadata if the project is HDR.
  • Video File Maker (V1.0.1 HDR or current GitHub release) with hundreds of GB free on a fast internal drive.
  • Menu Maker for the HTML navigation layer.
  • ImgBurn (or equivalent) set to UDF revision 2.60.
  • Blank BD-R 25 GB / 50 GB, or BD-XL if capacity planning says so – and a burner that can write them.
  • Windows Player plus a Chromium browser for smoke tests.

Step 1 – Pick a profile before you encode

HQ Plus, HQ, Standard, and LP are capacity contracts, not quality slogans. For a first disc, Standard is the sensible default if you are aiming at a ~100-minute feature on 50 GB-class media. HQ Plus suits short premium 8K demos; LP is for packing longer programmes onto 25 GB. Decide once; do not mix “HQ Plus menu copy” with an LP bitstream.

Step 2 – Encode with Video File Maker

  1. Extract Video File Maker where the batches can write large intermediates.
  2. Place your master where the scripts expect it (follow the release README / authoring guide naming).
  3. Run the SDR or HDR batch that matches your master – do not run HDR scripts on plain SDR hoping for magic.
  4. Optional: prepare anaglyph Source3D.mp4 only if you will ship a 3D menu button.
  5. Confirm outputs are VP9 Profile 2 with Opus as required by the format body of standards.

Step 3 – Build menus

Point Menu Maker at the encoded tiers. Set background art (wide stills work best), title text, and chapter labels. Enable 8K / 4K / HD / 3D links only for files that exist. Export the menu folder into the disc tree beside the media. Open the HTML in Chromium from the hard drive before you burn anything.

Step 4 – Assemble and burn

  1. Collect menu HTML, media, and launchers into one disc root as the authoring guide describes.
  2. In ImgBurn, create an image or write folders with filesystem UDF 2.60, recurse subdirectories, set a sensible volume label.
  3. Burn BD-R/BD-XL at a conservative speed; enable verify.
  4. Play the burn in the Windows Player, then again via the HTML launcher. Switch resolutions once each.

First-disc failure modes

  • Empty ISO / missing files: rebuild from the assembled folder with UDF 2.60; do not assume a wizard left a good image.
  • Menu advertises 8K, only HD plays: you linked a missing tier – re-export Menu Maker.
  • Encode finished, disc won’t fill: wrong profile for runtime; replan bitrate vs blank capacity.

Budget an evening for the first burn even if the encode finished overnight: folder assembly and UDF settings cause more failed discs than codecs. Full living documentation, downloads, and the official authoring guide sit on 8kdvd.hddvd-revived.com. Get one Standard disc working end-to-end before you chase multi-disc HQ Plus box sets.

8KDVD Blog Guides Playback
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Watching 8KDVD: Windows Player and Browser Fallback

8KDVD playback is a two-lane road: a Windows desktop player for the full experience, and an HTML/Chromium fallback that runs wherever you can open a local disc folder or mounted ISO. There is no consumer set-top “8KDVD deck” shipping as a mass product yet, so plan your watching setup around a PC, mini-PC, or Android device with enough GPU horsepower for VP9 Profile 2 at the resolution you pick in the menu.

Before you press Play

  • Use a Blu-ray-capable optical drive for pressed or burned BD-R/BD-XL media. A plain DVD burner will not read Blu-ray blanks.
  • Mount an ISO the same way you would any UDF volume, or copy the disc tree to a fast SSD if seek times on a flaky burner stall 8K streams.
  • Confirm the display can take the resolution you intend: 8K tiers need an 8K panel (or a downscaling path you trust); 4K and HD buttons are there for a reason.
  • Prefer a Chromium-based browser for the HTML launcher (Chrome, Edge, Chromium, Brave). Firefox may struggle with the same local media pipeline.

Windows Player (preferred path)

The Windows Player from the project’s GitHub releases is the first-class route: full-screen navigation, menu integration, and fewer browser security quirks around local file access. Install the current build, insert or mount the disc, and launch from the player rather than hunting for index.html by hand.

  1. Install the latest Windows Player release.
  2. Insert the 8KDVD or mount the ISO.
  3. Open the title from the player UI so menus and resolution switches load as authored.
  4. Pick 8K, 4K, HD, or 3D only if that button was enabled for real encodes on the disc.
  5. If video stutters, drop one resolution step before blaming the burner – decode load usually beats optical throughput as the first culprit.

HTML / Chromium fallback

On macOS, Linux, Android, or a locked-down Windows box without the native app, open the disc’s HTML menu in a Chromium browser. Launchers shipped on the disc are meant to point you at that entry page. Treat it like a local website: allow local media if the browser prompts, keep the volume mounted while you watch, and avoid “Open with…” random media players that ignore the menu layer entirely.

Android playback needs a drive or a pre-copied folder tree the device can see; USB-OTG Blu-ray enclosures vary wildly – test with a short Standard or LP encode before committing an evening to an HQ Plus master.

Practical troubleshooting

  • Black menu, no video: wrong browser engine, or the volume unmounted mid-session.
  • 8K button dead / wrong stream: that tier was never authored; use 4K/HD.
  • Audio dropouts: Opus decode is light; more often the drive is thrashing – copy to SSD and retry.
  • HDR looks flat: confirm the Windows HDR toggle and that the encode was an HDR batch from Video File Maker, not SDR.

Sample ISOs and player links live on 8kdvd.hddvd-revived.com. Smoke-test every burn on the same machine class your audience will use; “works on my edit PC” is not the same as “works on a fanless NUC with an external BD-XL.”

8KDVD Blog Format Overview Guides
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What Is 8KDVD? A Format Field Guide

8KDVD is an offline ultra-high-definition disc format from HD DVD Revived. It stores feature video as VP9 Profile 2 with Opus audio on ordinary Blu-ray media imaged as UDF 2.60, and it drives navigation with HTML menus that open in a Chromium-class browser or the dedicated Windows player. Think of it as a physical carrier for 8K (and lower-resolution fallbacks), not a new laser standard and not a streaming app squeezed onto plastic.

What sits on the disc

A finished 8KDVD is a data disc: encoded WebM-style bitstreams, menu HTML/JavaScript, platform launchers, and artwork assets laid out so a PC or Android box can mount the volume and start the menu. The volume format is UDF 2.60 – the same family Blu-ray authoring tools already know – so ImgBurn and similar burners can write 25 GB or 50 GB BD-R, or larger BD-XL blanks when the project needs the headroom.

  • Video: VP9 Profile 2 (SDR or HDR10 batches from Video File Maker).
  • Audio: Opus, muxed with the video tier.
  • UI: browser-based menus built in Menu Maker, with resolution switches (8K / 4K / HD / optional 3D) when those tiers exist.
  • Playback: Windows app first; HTML/Chromium fallback on Windows, macOS, Linux, and Android.

Encode profiles in one line

Authoring targets four named profiles – HQ Plus, HQ, Standard, and LP – which trade bitrate and runtime against disc capacity. HQ Plus is the short premium 8K tier; Standard is the practical “feature film on 50 GB-class media” setting; LP packs longer programmes onto 25 GB blanks. Pick the profile before you encode; the menu should only advertise resolutions you actually built.

How it differs from Blu-ray and Ultra HD Blu-ray

Commercial Blu-ray and UHD Blu-ray use MPEG-family video, proprietary menu systems, and licensed player stacks. 8KDVD deliberately uses open codecs and a web menu layer so indie and remaster projects can ship without a Hollywood authoring suite. There is no dedicated living-room 8KDVD deck yet; the published path is the Windows player plus the HTML launcher. Hardware makers can integrate the same menu model later – the navigation was designed with that in mind – but today you plan for a PC, mini-PC, or Android player with a Blu-ray-capable drive (or a copied folder/ISO).

Physical presentation

Retail and demo titles use a red, DVD-sized case so the format reads at arm’s length on a shelf. Photoshop box templates and sample ISOs live on the official project site. Licensing for low-budget and free/CC work is intentionally light; check current terms on 8kdvd.hddvd-revived.com before you brand a commercial release.

Tool chain at a glance

  1. Video File Maker – batch SDR/HDR encodes into the profile set.
  2. Menu Maker – HTML navigation, chapters, resolution buttons.
  3. ImgBurn (or equivalent) – UDF 2.60 image or burn; BD-XL when capacity demands it.
  4. Windows Player / Chromium launcher – verify before you mail discs.

The older all-in-one 8KDVD Maker wizard still exists for demos, but new titles should follow Video File Maker → Menu Maker → ISO. For living docs, profiles, and downloads, start at the official 8KDVD site and work outward from the authoring guide rather than inventing a parallel workflow.

Blog CBHD Guides Open Questions
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CBHD Open Questions and Confirmed Facts

What the research passes treat as confirmed

After multiple independent compilation passes, the following statements are treated as established rather than speculative:

  • Professional CBHD authoring and professional CBHD verification existed (Memory-Tech/CBC/UOD production; DCA China HD verifier documentation).
  • UDF was used; CBHD had its own physical modulation (4-6 FSM replacing HD DVD 8-12 ETM).
  • Commercial CBHD players, proprietary optical pickups and CBHD-specific chipsets existed (Shinco and TCL production models; pickup and Novatek patents).
  • CBHD/BD optical compatibility was actively engineered (freeform objective-lens patent; multi-format pickup discussion).
  • Recordable CBHD was technically contemplated; commercial CBHD was primarily pressed/read-only (dye patent; AACS LA P/R categories; no shipped CBHD-R ecosystem found).
  • DKAA existed; AACS was used for international content; CETC navigation existed; AVS/DRA were part of the format.
  • CBHD was not normally compatible with HD DVD players.

Still unresolved – specifications and DRM

  1. Exact CBHD Book 2 and Book 3 specifications; complete CETC authoring specification.
  2. Complete DKAA specification, key architecture and key files. Expansions of the name disagree (“dual-key” vs “Data Key Authorization Access”); no pass cites a DKAA specification document; no DKAA patent numbers were located.
  3. GB/T, SJ/T or CY/T standard number for CBHD as a whole (AVS and DRA have numbers; the disc format does not in any pass).
  4. The actual FSM 4-6 patent (an OMNERC RLL patent exists but is not confirmed as commercial FSM).

Still unresolved – software and imaging

  1. Commercial authoring application names; encoder names and versions; CBHD muxer and premastering software (known to have lived at CBC; binaries not found).
  2. CBHD emulator; CBHD PC playback software (absence not fully proven).
  3. Firmware archive, firmware file formats and update history (THBD-1008 Spansion flash is a dump target only).
  4. An actual CBHD disc image; directory dumps; MediaInfo logs from real discs.
  5. Whether burned DVD/HD DVD-R media with a CBHD folder structure plays on real CBHD players (Gemini pipeline vs FSM physical argument).

Still unresolved – catalogue and hardware inventory

  1. Complete movie catalogue, catalogue numbers (ISRC/版号) and disc IDs.
  2. Complete player chipset inventory; service manuals; board photographs for every model; CBHD pickup part number.
  3. Commercial CBHD-R media and recorder.
  4. Any successful HD DVD → CBHD or CBHD → HD DVD conversion.
  5. Relationship between Shinco HD-3700 (HiFi demonstrator, July 2010) and HD-3700U (UTI hybrid player).
  6. Primary-source confirmation for TCL THBD-1038 feature set beyond secondary encyclopaedia entries.

Conflicts between passes that remain open

Topic Tension
PC HD DVD drives reading CBHD sectors Claimed workable vs FSM/channel hardware requirement; no published test
Home-burned DVD+R DL playback Gemini “works on HD-3700U/THBD-1008” vs no documented successful case elsewhere
Directory layout CBHD_TS/.AVS model vs EVOB/HD DVD Book 3 model
Early disc codecs “Exclusively AVS” vs early VC-1/AVC likely before Sep 2009
Region coding Undocumented / HD DVD-like free vs China-locked
Shinco monthly sales “Under 11,000” vs “on the order of 11,000” CHDA-sourced summaries
3:1 CBHD vs Blu-ray sales Single GOME store / promoter figure vs later CMM decline data

Highest-value next artefacts

  1. One inexpensive domestic CBHD disc plus sector image.
  2. Working Shinco CBHD-9100 and TCL THBD-1008 for behavioural comparison.
  3. Pickup label photos and Novatek/other chipset identification.
  4. NOR flash dump from THBD-1008 (and any Shinco dump).
  5. DCA Class A verifier with China HD configuration.
  6. CBC / Memory-Tech / UOD authoring or premaster samples.
  7. AACS CBHD Pre-recorded 0.90 book plus any DKAA fragment.
  8. std.samr.gov.cn / 新闻出版 search for CY/T CBHD documents.
  9. Full AVSForum master thread scrape while pages remain reachable.
  10. Wayback walks of shinco.com news/product trees and chdia.org.cn.

How to read the rest of this series against the open list

Format-at-a-glance and technical posts state physical parameters from the CHDA technical page with confidence. History and market posts carefully mark single-store sales myths. Codec posts separate what FFmpeg can decode from what DKAA still blocks. Hardware posts limit commercial models to the documented Shinco and TCL six, noting prototypes separately. Firmware and home-authoring posts present conflicting arguments side by side rather than picking a winner without evidence. Catalogue and buying posts refuse inflated 1,000-title claims and empty eBay searches as proof of total absence on Chinese C2C apps.

The open-question list is the research agenda. Confirmed items are the floor. Everything between-especially FSM vs burnable UDF, DKAA internals, and a real directory dump-decides whether CBHD reconstruction stays a literature project or becomes a playable archive.

Method notes for the next research cycle

Treat single-store sales myths, promoter-sourced 30/10/60 splits and alliance 1,000-title targets as claims with provenance, not as measurements. Treat CHDA physical parameters (0.204 μm pits, 0.40 μm track pitch, NA 0.65, 36.55 Mbps 1×, 28 Mbps max video) as higher-confidence because they come from the archived technical page. Treat Gemini-only pipelines and directory trees as hypotheses until a disc image confirms or falsifies them. Treat “no PC decoder found” as an open search, not a mathematical proof of absence.

When two passes conflict, publish both rows in the lab notebook rather than averaging them into a false consensus. FSM versus ATAPI sector-read, CBHD_TS versus EVOB, exclusive-AVS versus early-VC-1, and China-locked versus region-free are the four conflicts most likely to waste months if silently resolved the wrong way.

Success criteria for closing questions

  • Book 2/3: page images or PDFs with identifiable revision strings.
  • DKAA: patent numbers plus at least one key-file format description.
  • Authoring: named executable or installer from CBC/Memory-Tech with version.
  • Firmware: hashed NOR dump from THBD-1008 with readable strings list.
  • Disc image: full sector image plus UDF tree listing and MediaInfo.
  • Home burn: dated photo/video of a named burned disc playing on a named player model.
  • Catalogue: 版号 list or photographed spines covering >100 unique retail SKUs.
  • Pickup: part number photographed on a commercial Shinco or TCL mechanism.

Until those criteria trip, the series should keep hedging language. Confirmed facts in section one are the floor you can build tooling on; everything else is scaffolding. The corrected history-from 2005 WG-11 proposal through FSM/CETC/AVS engineering, Memory-Tech production, April 2009 launch, GBAX UK import, ~100-title plateau and 2011 collapse-is solid enough to motivate the hunt. The open list is what the hunt still owes the archive.

Hardware inventory gaps include service manuals for every commercial model, board photographs beyond the THBD-1008 excerpt, confirmation of THBD-1038 features from primary Chinese sources, and clarification whether Shinco’s HD-3700 HiFi demonstrator equals, variants, or differs from the HD-3700U UTI hybrid. Prototype photography of CBHD-9000 and Tongfang CBHD-0002 should stay labelled prototype, not quietly merged into the six-player commercial set.

Standards gaps include the missing whole-format GB/T or CY/T number, the true 4-6 FSM patent (as opposed to the nearby OMNERC RLL grant), and DKAA’s patent family. Software gaps include emulator existence, PC playback apps, and named muxer versions. Imaging gaps include any public sector dump. Compatibility gaps include any proven cross-flash and any proven burned-disc playback on named hardware. Closing any three of those clusters would materially change what “CBHD revival” can mean in practice.

Community-source gaps double as open questions: uncleared Tieba and Douban groups may hold directory screenshots; unrecovered GBAX product pages may hold UK bundle lists; unlocated BOC licensing pages may hold royalty schedules. The open list is therefore not only laboratory work-it is also archival web work against rotting 2009 HTML. Prioritise artefacts that unlock multiple questions at once: one disc image tests filesystem, codecs and DRM; one firmware dump tests CETC and key handling; one DCA verifier install tests Book 3 assumptions without needing the lost authoring GUI.

Ordering the hunt

If resources allow only three purchases, buy one domestic disc, one Shinco CBHD-9100, and one TCL THBD-1008. If resources allow only one engineering week, dump the THBD-1008 flash and photograph both pickups. If resources allow only web time, finish AVSForum page captures and std.samr.gov.cn searches for CY/T CBHD documents. Those three tracks-media, firmware, standards numbers-unlock the largest number of dependent questions on the unresolved list. Home-authoring experiments and cross-flash fantasies can wait until the floor artefacts exist.

Revisit this open list after each new artefact; strike items only when the success criteria above are met with citeable files.

Further reading on historic video formats

If you want to learn more about historic video formats, get The History of Physical Video Formats from the Frontier by Stephen Driver on Amazon:

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CVD Open Questions and Confirmed Facts

Separating the known from the missing

China Video Disc (CVD) research is uneven: some commercial and technical facts are multiply attested, while neighbouring questions that collectors naturally ask-exact model lists, named titles, full standard texts-remain open. Separating the two is the point of this post. Confirmed items below are those the located 1998 Chinese press, C-Cube SEC filings, VCDImager documentation and DVD-Video references support. Unresolved items are framed as questions, not as guesses. Source conflicts that cannot yet be measured are kept as open disagreements rather than collapsed into a single “settled” story.

Confirmed facts

  1. Launch date and place. CVD was launched on 9 June 1998 in Shanghai with a jointly drafted industry standard (Wenzhai Bao).
  2. C-Cube decoder timing. C-Cube sold a CVD decoder from Q2 1998 and described it as Chao Ji VCD-compliant by Q3 1998 (SEC filings).
  3. National Super VCD standard. SJ/T 11196-1998 was announced on 29 September 1998, took effect on 1 November 1998, and made two technical changes towards CVD (Guangming Daily). What those two changes were is not yet recovered from the full text.
  4. Player mechanism and decoder camps. Contemporary Guangming Daily reporting associates CVD players with Philips 2× mechanisms, CD7 servo and C-Cube decoders, and SVCD players with Sony mechanisms and a reported ESS/Shinco decoder.
  5. 5.1-channel announcement. A 5.1-channel CVD scheme had been announced by November 1998 (Guangming Daily).
  6. Shared INFO system ID. CVD and SVCD share the “SUPERVCD” INFO system ID; video width (352 versus 480) is the reliable discriminator (VCDImager).
  7. Subtitle format. CVD-style subtitles are a distinct, non-IEC format, reverse-engineered in VCDImager’s cvd-subtitles documentation.
  8. MPEG-2 legality at 352 width. 352×480/576 MPEG-2 is DVD-legal video (DVD-Video / Wikipedia summaries of the DVD-Video constraints).

These eight points already constrain preservation work. A disc labelled only by the SUPERVCD system ID is not automatically “SVCD” in the 480-wide sense; width measurement is mandatory. Subtitle streams cannot be assumed to be standard OGT/IEC without inspection. Hardware identification should ask for Philips-versus-Sony mechanism photos and C-Cube-versus-ESS/Shinco chip markings because period reporting treated those as camp markers. C-Cube’s Q2-Q3 1998 SEC language ties the commercial chip story to Chao Ji VCD branding, which matters when Western sellers list “Chaoji” rather than “CVD.”

What “confirmed” does not mean

Confirmed does not mean complete. The 9 June Shanghai launch is attested; the full enterprise-standard text from that launch is not. SJ/T 11196’s effective date is attested; its full text and the exact “two technical changes towards CVD” are not. Mechanism/decoder camps are attested in contemporary comparison reporting; every individual 1998 retail SKU has not been inventoried. The 5.1-channel scheme was announced; shipping status of 5.1 CVD titles is unproven here. Shared SUPERVCD identity and 352-versus-480 discrimination are tool-supported facts; they do not invent a title list. DVD-legal video at 352 width explains why hobbyists could remux to DVD without re-encoding pictures; it does not prove every Western DVD player accepts CD-based CVD discs.

Still unresolved

The open list is long because the format’s paper trail is thin outside newspaper summaries and hobbyist reverse engineering:

  • Full text of the June 1998 CVD enterprise standard. Without it, “jointly drafted industry standard” remains a chronological fact rather than a readable technical specification.
  • Full text of SJ/T 11196-1998, and a precise account of the “two technical changes towards CVD” named in Guangming Daily.
  • Whether 1998 CVD allowed 480-wide video. Guangming Daily says CVD suited 2/3 D1 as well as 1/2 D1-language that would permit 480-wide as well as 352-wide material-but that claim sits in tension with later hobbyist practice that treats 352-wide as the CVD hallmark. Keep both notes; do not collapse them.
  • The exact CVD disc identifier and the mechanism of 1998 “interference codes” reported in the compatibility war.
  • Private_stream_1 sub-IDs for CVD-style subtitles. 0x00-0x03 is assumed in tooling discussion, not verified against a corpus of pressed discs.
  • Model names and chip markings of 1998 CVD players beyond the reported Jinzheng N100/N300. Brand-level coverage (Jinzheng, Aido, SAST and others) is far ahead of SKU-level coverage.
  • C-Cube CVD decoder part number(s) and datasheet. SEC filings confirm product timing and Chao Ji VCD compliance language; the discrete part numbers and electrical documentation remain missing.
  • Any named commercial CVD title, its publisher and 版号. Aggregate “several hundred titles” claims exist; individual spines do not, yet.
  • Identity of “Xiamin Solid” / “Xiamen Solid.” The name appears in C-Cube’s customer list and Western summaries as an unresolved entity label.
  • Whether current VCDImager warns or refuses on 352-wide SVCD input-a tooling behaviour question that affects how researchers classify homemade discs.
  • Real CVD compatibility rates of Western DVD players. Community claims range from roughly 30% of NTSC players to effectively 100% of SVCD players. Those figures disagree and must stay open.
  • Chipset support lists for later DVD platforms (Zoran, MediaTek, Sunplus) with respect to CVD playback.
  • Whether the “CVD 2000 project” (¥200 million) announced in November 1998 actually produced discs.

How to use the open list

Each unresolved item suggests a different next archive. Enterprise and SJ/T texts point at standards libraries, CNKI, and ministry or industry-body reprints. The 480-wide ambiguity points at recovering Guangming Daily’s full technical comparison table and measuring any surviving disc. Interference codes point at Wenzhai Bao’s late-1998 compatibility reporting and at physical discs that fail selectively on rival camps’ players. Subtitle sub-IDs require bitstream captures from labelled CVD discs, not more assumption. Model and chip work requires seller photographs, board shots and possibly Internet Archive captures of c-cube.com product pages from 1998-2000. Title and 版号 work requires Kongfz/Xianyu disc photography. “Xiamin/Xiamen Solid” needs Chinese-language company and press search against C-Cube’s named customer list. Compatibility percentages need structured playback tests across known SVCD-capable decks rather than another forum anecdote. CVD 2000 needs follow-up in late-1998 and 1999 industrial reporting.

Open disagreements to preserve

Two conflicts deserve explicit preservation as disagreements rather than premature synthesis. First, video width: tool culture and many Western guides treat 352-wide MPEG-2 as the CVD signature, while 1998 Guangming Daily language about suitability for 2/3 D1 as well as 1/2 D1 leaves room for 480-wide CVD. Second, Western player compatibility: one community tradition cites low NTSC success rates near 30%, another treats SVCD-capable players as effectively universal CVD players, and some VideoHelp posters reported never finding a working NTSC CVD machine at all. Until measured disc samples and controlled player matrices exist, both conflicts remain research status, not settled lore.

A third soft disagreement sits behind launch-maker rosters already discussed elsewhere in this series: Wenzhai Bao’s five-firm list, Jinzheng’s seven-firm “first batch,” Baidu Baike variants and Western summaries that name “Xiamen Solid” differently. Those are kept open in the history post; they reappear here only to note that “confirmed launch on 9 June 1998” does not yet mean “confirmed single maker list.”

A working research posture

The confirmed set is enough to begin serious collecting and dumping: know the launch date, know C-Cube’s 1998 decoder window, know SJ/T 11196’s calendar, know the Philips/C-Cube versus Sony/ESS-Shinco hardware axis reported in 1998, know that 5.1 CVD was announced, know that SUPERVCD identity is shared and width discriminates, know that CVD subtitles are a special case, and know that 352-wide MPEG-2 is DVD-legal video. The unresolved set is enough to stop false catalogue inflation: no standard PDFs in hand, no decoder datasheet, no named title, incomplete model list, unverified subtitle IDs, unsettled width and compatibility stories, and an unverified ¥200 million disc project.

Future posts in this series should promote an item from “unresolved” to “confirmed” only when a primary document, a measured disc, or a photographed SKU supports the move. Demoting a “confirmed” item should be equally explicit if a better primary source contradicts the newspaper or tool summary used here. CVD history will not be completed by smoothing over gaps; it will be completed by filling them with the same discipline that already secured the eight facts above.

Further reading on historic video formats

If you want to learn more about historic video formats, get The History of Physical Video Formats from the Frontier by Stephen Driver on Amazon: