This indicates the source material is a high-definition Blu-ray disc, scaled to a 1280x720 resolution. While 4K is the current king, 720p remains the "sweet spot" for testing how much detail a codec can retain at incredibly small file sizes.

: This likely refers to the audio bitrate (20 kbps) and the specific encoding profile (RA often stands for "RealAudio" in legacy contexts, but in modern USAC encoders like those found on Fraunhofer, it can refer to a specific "restricted" or "reduced" complexity setting). Why this is unique

In the early 2000s, a high-quality rip of Shrek would have required 700MB (a standard CD-R) and looked "blocky." With H.266, that same movie can be compressed into a file size as small as 100MB to 200MB while maintaining "transparent" quality—meaning the human eye can't distinguish it from the original Blu-ray. The Challenges of VVC

: This is the successor to H.265 (HEVC). Finalized in 2020, it offers roughly 50% better compression

The result: a 5.1 track at ~192 kbps total that audibly outperforms AC3 at 640 kbps.

: Indicates the original high-definition source used for the encode.

Refers to the original Shrek film, released in 2001. A landmark in computer animation and winner of the first Academy Award for Best Animated Feature.