as of the moment eto pa lang ang most efficient compressors:
video: x265
audio: aac
container: mkv
pero kahit gamitin mo pa sila impossible pa din magkaroon ng isang movie in a 100MB
kaya ang gawin mo na lang is reduce the quality:
video: from HD (720p or 1080p) reduce to 360p or 240p
audio: from 192 kb/s reduce to 32 kb/s
container: from single file split into discs 1&2