Guru -2007- Bluray 1080p 10bit Hevc Aac 5.1 X26... [verified] -

: AAC 5.1 (Advanced Audio Coding with 6-channel surround sound) Production & Technical Details Guru (2007) - Technical specifications - IMDb

The filename fragment you posted: Guru-2007-BluRay-1080p-10bit-HEVC-AAC-5.1-x26… suggests a high-quality encode with: Guru -2007- BluRay 1080p 10bit HEVC AAC 5.1 x26...

In the context of movie release titles, is the name of a release group or encoder. : AAC 5