: .mp4 , a universal digital multimedia container format.
: SUBS indicates that subtitle tracks (either hardcoded or as a separate stream) are included in the file. 13764-BR1080p-SUBS-HALLOWEENENDS.mp4
: BR (Blu-ray rip), indicating high-quality video sourced from a physical disc rather than a digital stream. 13764-BR1080p-SUBS-HALLOWEENENDS.mp4