My whole media library of ripped DVDs and Blurays (that I legally own) is in MKV format. You get video, chapter marks, multiple audio streams, and subtitles all

My whole media library of ripped DVDs and Blurays (that I legally own) is in MKV format. You get video, chapter marks, multiple audio streams, and subtitles all in one file. Plus almost every modern device plays them. I love it as a container format. My MKVs typically have H264 video + AC3/DTS audio.