AVC MPEG-4, as technology People & Technology

AVC (Advanced Video Coding), also known as H.264 or MPEG-4 Part 10, is the video compression standard used on all standard Blu-ray discs. It replaced the MPEG-2 codec used on DVD, offering significantly better compression efficiency — roughly the same visual quality at half the bitrate, or substantially better quality at the same bitrate.

On Blu-ray, AVC encodes run at up to 1080p resolution (1920x1080) with 8-bit color depth. The practical quality of an AVC encode depends on the bitrate allocated and the quality of the source scan. Disc reviewers routinely note whether a release uses AVC or the older MPEG-2 codec, as AVC is the preferred standard for catalog titles.

AVC was superseded by HEVC H.265 for UHD Blu-ray, but remains the standard on all 1080p Blu-ray releases.

In the wiki

Film	Page	Summary
Invasion of the Body Snatchers (1978)	Physical Media Releases (Invasion of the Body Snatchers)	2010 MGM/Fox Blu-ray used 1080p/AVC MPEG-4 at 1.85:1
Invasion of the Body Snatchers (1978)	Scream Factory Blu-ray (Invasion of the Body Snatchers)	2016 Collector's Edition used 1080p/AVC MPEG-4 from a 2K scan of the interpositive
Blow Out (1981)	Physical Media Releases (Blow Out)	2013 Arrow Video Blu-ray had a higher average bitrate on the AVC compression than Criterion's encode