Hello ! I am a little bit lot, i just bought a new ipad and i have some issues, actually, i have mkv movies with external srt subtitles files, the thing is that i must use first mkvmerge to merge the srt with the mkv, and then i use subler to convert it to MP4 OK, but it doesn't work sometimes with some mkv files even if the video format is H 264. Is there a ultimate tool that convert all video files, subtitles external/or not into readable ipad 3 files ? Even if it's a shareware/commercial. Thanks a lot !