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Quicktime Gamma Bug

Quicktime Gamma Bug

19 films on Best Blurays

The “0.88 QuickTime gamma bug” is a long-known issue where video encoded or tagged through certain QuickTime-based workflows can display too bright, washed out, and lower-contrast outside the environment it was intended for. In practice, blacks look lifted and the whole image loses density. Applying a gamma correction around 0.88 is often used as a rough fix.

See https://vitrolite.wordpress.com/2010/12/31/quicktime_gamma_bug/ for more details

Type: Keyword

Includes 19 films that name Quicktime Gamma Bug only in the notes.

Director: Rouben Mamoulian

Best English-Friendly & Video:

Germany Explosive Media Blu-ray

Sources: slow.pics (opens in a new tab)

Video Notes:

Kino Lorber Blu-ray not only suffers from Quicktime Gamma Bug, but also has slightly worse encoding see caps comparing 0.88 gamma

Director: William A. Wellman

Best English-Friendly & Video:

Arrow Blu-ray

Sources: Criterion Forum (opens in a new tab) · slow.pics (opens in a new tab)

Video Notes:

Kino Lorber Blu-ray suffers from the Quicktime Gamma Bug see caps

Best Audio:

Kino Lorber Blu-ray from blah-ray:

Audio Notes:

Both the Plaion and Arrow audio tracks sound like they received little/any high- or low- frequency attenuation, but the audio on the new Kino Lorber restoration is much more detailed. It's likely that it was transferred from different (superior) analogue elements. It sounds excellent.

Director: Abraham Polonsky

Best English-Friendly & Video:

UK Arrow Blu-ray

Sources: caps-a-holic (opens in a new tab) · slow.pics (opens in a new tab)

Video Notes:

Kino Lorber Blu-ray is significantly worse with potential DNR see caps

OOP Olive Films Blu-ray seems to be the same transfer as Arrow but with Quicktime Gamma Bug see comparison

Director: Masaki Kobayashi

Best English-Friendly & Video:

Criterion Blu-ray

Sources: Criterion Forum (opens in a new tab)

Video Notes:

Criterion Blu-ray > Arrow Blu-ray > Japan Blu-ray

Both Arrow and Japan Blu-ray seem to suffer from the Quicktime Gamma Bug

Director: Masaki Kobayashi

Best English-Friendly & Video:

Criterion Blu-ray

Sources: Criterion Forum (opens in a new tab)

Video Notes:

Criterion Blu-ray > Arrow Blu-ray > Japan Blu-ray

Both Arrow and Japan Blu-ray seem to suffer from the Quicktime Gamma Bug

Director: Roger Corman

Best English-Friendly & Video:

US Shout! Factory Blu-ray

Sources: Criterion Forum (opens in a new tab) · slow.pics (opens in a new tab)

Video Notes:

UK Arrow has the best encoding, but only US Shout! Factory has the fixed Quicktime Gamma Bug.

Both Germany and UK Arrow suffered from the bug, see caps comparing 0.88 gamma fix

Director: Masaki Kobayashi

Best English-Friendly & Video:

Criterion Blu-ray

Sources: Criterion Forum (opens in a new tab)

Video Notes:

Criterion Blu-ray > Arrow Blu-ray > Japan Blu-ray

Both Arrow and Japan Blu-ray seem to suffer from Quicktime Gamma Bug

Director: Billy Wilder

Best English-Friendly & Video:

Germany Plaion Blu-ray

Sources: slow.pics (opens in a new tab)

Video Notes:

Germany Plaion Blu-ray has the best encoding, and both MoC and Kino Lorber Blu-ray have Quicktime Gamma Bug see caps

For encoding, Plaion > MoC > Kino Lorber

Director: Stanley Kramer

Best English-Friendly & Video:

UK BFI Blu-ray

Sources: caps-a-holic (opens in a new tab) · slow.pics (opens in a new tab)

Video Notes:

UK BFI Blu-ray is very similar to Germany Capelight Blu-ray but Capelight is slightly more sharpened see caps

Both Kino Lorber and Twilight Time OOP Blu-ray suffer from Quicktime Gamma Bug see caps

Director: Stanley Donen

4K · Excellent
Best English-Friendly & Video:

Criterion 4K Blu-ray

Sources: Criterion Forum (opens in a new tab) · slow.pics (opens in a new tab) · caps-a-holic (opens in a new tab)

Video Notes:

Criterion 4K Blu-ray see caps comparing UHD vs BD: https://slow.pics/c/IVNrYoYW

For older Blu-ray: Criterion Blu-ray > Universal Blu-ray with slightly worse encoding > Japan Paramount or UK Park Circus Blu-ray with significantly flatter contrast (possibly Quicktime Gamma Bug?) see caps

Director: Cy Endfield

Best English-Friendly & Video:

US OOP Twilight Time Blu-ray

Sources: caps-a-holic (opens in a new tab)

Video Notes:

US OOP Twilight Time Blu-ray > UK Paramount Blu-ray or US Inspired Blu-ray

The UK Blu-ray not only have some DNR applied, it's also squeezed and cropped: see comparison

The color contrast from Twilight Time is however possibly suffering the Quicktime Gamma Bug, but that's an easier issue to fix than DNR or cropped images.

Director: Sidney Lumet

Best English-Friendly & Video:

BFI Blu-ray

Sources: slow.pics (opens in a new tab)

Video Notes:

While Olive Films Blu-ray is better encoded than BFI Blu-ray, it suffers from the Quicktime Gamma Bug  see caps

Director: Billy Wilder

Best English-Friendly & Video:

UK MoC Blu-ray

Sources: caps-a-holic (opens in a new tab)

Video Notes:

UK MoC Blu-ray has the better encoding

US Kino Lorber Blu-ray has inferior encoding and likely suffers from the Quicktime Gamma Bug see caps

Best Audio:

MOC Blu-ray or MGM Laserdisc

Additional Info:

Eureka MOC is far superior to Kino with also more printed booklet extras. The reconstruction work, transfer and extras date back to MGM's Laserdisc attempt. The LD master and materials were ported to the MGM DVD which in turn was paired with an updated HD master for the BDs. The film still cries out for a proper modern restoration and reconstruction attempt with the partially surviving cut sequences. The extras on LD also have PCM audio and one of the visuals in one of the cut episodes is more untouched which is censored for nudity on the modern versions. It's small but the particular element has been blurred on most versions today.

Director: Billy Wilder

Best English-Friendly & Video:

Germany Plaion Blu-ray

Sources: caps-a-holic (opens in a new tab)

Video Notes:

Germany Plaion Blu-ray has better encoding and Kino Lorber Blu-ray likely suffers from the Quicktime Gamma Bug, see caps

Director: John Cassavetes

Best English-Friendly & Video:

Criterion Blu-ray

Sources: Criterion Forum (opens in a new tab) · caps-a-holic (opens in a new tab)

Video Notes:

BFI suffers from Quicktime Gamma Bug see caps

Director: John Cassavetes

Best English-Friendly & Video:

Criterion Blu-ray

Sources: Criterion Forum (opens in a new tab) · DVDBeaver (opens in a new tab)

Video Notes:

Criterion is warmer and more lifelike than BFI. See DVDBeaver review for more caps

BFI suffers from Quicktime Gamma Bug

Criterion has better encoding and doesn't have the bug so that's preferable.

Best Audio:

BFI

Audio Notes:

BFI looks to be more untouched, not sure about Criterion

Director: Fernando Meirelles

Best English-Friendly:

Paramount Blu-ray

Sources: caps-a-holic (opens in a new tab) · DVDBeaver (opens in a new tab)

Best Video:

Japan TC Entertainment

Video Notes:

Director: Lee Chang-dong

Best English-Friendly & Audio:

Criterion Blu-ray

Sources: Criterion Forum (opens in a new tab) · slow.pics (opens in a new tab)

Audio Notes:

Criterion Blu-ray is superior to Japan Blu-ray see comparison 

Best Video:

Japan Blu-ray

Video Notes:

Japan Blu-ray is a newer 4K restoration. It has more details and avoids Criterion's highlight clipping, but most likely suffers the Quicktime Gamma Bug see caps It also doesn't has English subtitles.

Criterion also has the correct OAR at 2.35:1 while Japan Blu-ray is 2.39:1

Director: Hu Bo

Best English-Friendly & Video:

Taiwan DS Blu-ray

Sources: slow.pics (opens in a new tab)

Video Notes:

Taiwan DS Blu-ray is the best release, see caps

France Capricci Blu-ray has worse encoding than Taiwan Blu-ray

US KimStim Blu-ray has Quicktime Gamma Bug and a slightly worse encoding than Taiwan Blu-ray

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