Every score aggregates ratings from multiple independent technical reviewers, not a single opinion. Different scoring scales (stars, letter grades, percentages) are normalised to a single 0–10 number so you can compare any disc at a glance.

Every disc carries a confidence score from 0–100 reflecting how many reviewers have covered it. A disc scored by 5–7 sources carries a much stronger verdict than one with 2. We show this transparently rather than hiding low-coverage entries.

We don't care how good the movie is, only how good the disc looks. Every entry is evaluated purely on transfer quality and HDR presentation. A great film on a poor disc won't make the cut.

Coverage spans discs actively reviewed by the community from January 2026, plus a curated selection of significant older releases added based on community popularity and transfer quality relevance. Film age is irrelevant, a 1969 restoration is as eligible as a 2025 release. Can't find a disc? Use the search bar to request a score, we'll evaluate it and notify you when it's published.

Scores are drawn from seven trusted technical review sources: AVSForum, Blu-ray.com, Blu-Ray Authority, CriterionForum, DoBlu.com, High-Def Digest, The Digital Bits. A disc requires at least two independent sources before it is published.

Every source uses a different scale. We convert all ratings to a 0–10 baseline: stars ×2, letter grades mapped (A+=10 down to C+=7), percentages ÷10. Scores are then averaged across all available sources. A +0.2 DI bonus is applied when the 4K master is independently confirmed as native resolution. Scores are updated when new reviews are published. The detail panel shows the update date and reason when this occurs.

Reference ≥ 9.5	Gold standard. Demo-worthy transfers the enthusiast community regards as the best the format offers.
Excellent ≥ 9.0	Exceptional transfer. Buy with full confidence.
Recommended ≥ 8.0	Good transfer, worth owning. No meaningful reservations.
Notable ≥ 7.0	Competent transfer. Hidden by default, accessible via filter.
Below Threshold	Discs scoring below 7.0 are tracked but not published by default, accessible via the Below Threshold filter.

Consensus measures reviewer agreement via standard deviation of normalised scores: Strong Consensus (SD ≤ 0.5, 4+ sources) → Consensus → Soft Consensus → Disputed → Contested (SD > 1.5). Confidence measures coverage: how many of the possible sources have reviewed the disc. Both are shown independently because a high-confidence disputed score tells a different story than a provisional consensus one. Confidence is represented by the pip indicators (●) shown on each disc card.

When a disc has a matching IMDb ID in the streaming database, a Streaming Comparison panel appears in the expanded detail view. Data is sourced from the streaming quality database, covering HDR format and audio format per service. Bitrate and peak brightness are available to PRO members on 4KFilmDb. When per-service data isn't yet available, a fallback entry is used showing format support only, these are marked "basic data" in the section label.

Streaming availability is not actively tracked. The Streaming panel appears only where quality data has been captured. Its absence does not indicate that a title is unavailable on streaming services. Availability, regions and formats may change over time and may not reflect current platform offerings.

For the complete streaming quality database with PRO metrics, visit Streaming Reference →

Each streaming service is assigned a verdict based on the following hierarchy, evaluated in order:

Suspected HDR	Title is flagged as suspected tone-mapped HDR in the streaming database. Treat with caution regardless of other format claims.
Strong stream	Dolby Vision + Atmos confirmed, bitrate ≥ 15 Mbps. Best available streaming presentation.
Good stream	Dolby Vision + Atmos confirmed. Solid streaming presentation, bitrate below 15 Mbps threshold.
DV · No Atmos	Dolby Vision present but Atmos not confirmed on this service.
HDR10+ only	HDR10+ with Atmos but no Dolby Vision on this service.
Missing DV	HDR10 with Atmos but no Dolby Vision. Disc DV grade not replicated on this service.
SDR only	No HDR format detected. Significantly below disc quality on any HDR-capable display.
Limited quality	Partial data available. Verdict may be updated as coverage improves.

Backfilling high-demand titles not yet in the database: Harry Potter, James Bond and other major franchise releases are being evaluated and will be added as reviews are verified. Priority is based on community requests and transfer significance.

Expanding source coverage for low and moderate confidence discs: titles currently scored from 2–3 sources will be revisited as additional reviewer coverage becomes available, improving consensus accuracy across the database.