Pavtube ByteCopy, the best BD/DVD to Lossless MKV solution, is a powerful program with the ability of backing up Blu-ray/DVD collection to multi-track MKV without quality loss, ripping BD/DVD movies to MP4, MOV, and AVI with multiple audio streams, and converting BD/DVD from hard discs to virtually any popular video and audio format so that you can freely watch movies on iPad, iPhone, Apple TV, Android, Windows Phones, Samsung, Google, PSP, PS3, WDTV Live, and more devices. At the meantime, this Blu-ray/DVD to video converter can be considered as a user-friendly video editing tool with the professional functions to trim, crop, merge, insert subtitles, export SRT subtitles, add video effects in the destination movie.