I'm hoping I didn't just screw the pooch for the past 6 months... D: I've been ripping all my DVD's (using AnyDVD to break them, Handbrake to encode them) the past 6 months or so in preparation for my HTPC build. I've been ripping them to .MP4 format. What are the main differences in MP4 vs MKV? Am I giving anything up in quality? Am I missing any sort of audio or subtitle features? By and large, I've been using Handbrake at default... I bump the video quality up a little (CQ: 17.5) and importing subtitles if I know they are in the movie. I'm fixing to start ripping my BR disks, I think I have to go to MKV for those, correct?