: The file extension for a common MPEG-4 video container. Common file name extensions in Windows - Microsoft Support
Based on the filename provided, this file is a digital copy of the 2019 movie . 8555-BR720p-GR-SUBS-FROZEN2.mp4
: Indicates the source is a Blu-ray rip with a resolution of 1280x720 pixels . GR-SUBS : Denotes that the file includes Greek subtitles . : The file extension for a common MPEG-4 video container