Audio track: Often AC-3 5.1 at 448 Kbps, but some replace it with low-bitrate AAC stereo to save space.
: The Matroska Multimedia Container, a popular file format that can hold unlimited tracks of video, audio, picture, or subtitle tracks in one file. MudRMukBRK.1080p.HD.SouthFreak.com.mkv
This is almost certainly an illegally shared file, possibly fake or malicious. Audio track: Often AC-3 5
A quick search across legitimate databases reveals nothing. Genuine films follow recognizable naming patterns, e.g., The.Last.of.Us.S01E05.1080p.WEB-DL.HDR.10Bit.DDP5.1.x265-MUXED.mkv — still pirate nomenclature, but with consistent episode/show tags. MudRMukBRK.1080p.HD.SouthFreak.com.mkv
Why did I can't download in southfreak website? - Google Help
Indicates a high-definition video resolution (1920x1080 pixels). SouthFreak.com:
1080p HD means it is high-definition (1920x1080 resolution).