SqueezeTube

SqueezeTube lets users batch convert, tag, and add videos to iTunes in one step. Get all media ready for iTunes and iOS devices: just drop your video files on to the application drop area and that's it.

Also supports subtitles in MKV's and SRT format. Video files accepted: .MKV, .MOV, .M4V, .MP4, .MPG, .AVI, and EyeTV recordings.