HandBrake

HandBrake is a tool for converting video from nearly any format to a selection of modern, widely supported codecs.

Features

• Supported Sources
• VIDEO_TS folder, DVD image or real DVD (unencrypted -- CSS is not supported internally and must be handled externally with third-party software and libraries), BDMV folder (unencrypted), and some .VOB and .TS files
• Any multimedia file it can get libavformat to read and libavcodec to decode.
• Outputs
• File format: MP4 and MKV
• Video: MPEG-2, MPEG-4, H.264 or Theora (1 or 2 passes or constant quantizer/rate encoding)
• Audio: AAC, HE-AAC, AC3, MP3, Vorbis, FLAC (16-bit, 24-bit) or AAC, MP3, AC3, DTS and DTS-HD pass-through (supports encoding of several audio tracks)
• Miscellaneous features
• Chapter selection
• Soft subtitle support (DVD/VobSub in DVD/MKV/MP4, Blu-ray/PGS in BD/MKV, SRT files, SRT/UTF-8 in MKV, ASS/SSA in MKV, TX3G/3GPP in MP4 - DVD/VobSub, Blu-ray/PGS and ASS/SSA subtitles can also be burned-in the picture)
• Picture deinterlacing, cropping and scaling
• Grayscale encoding