VLC media player is a multimedia player, framework, streamer, and encoder. It can play inputs like files, network streams, DVDs, audio CDs, Blu-Rays, capture devices, and screens. It can play most audio and video codecs and formats (MPEG 1/2/4, H264, VC-1, DivX, WMV, Vorbis, AC3, AAC, MKV, etc.), but can also be used to convert to different formats and/or send streams through the network.
HandBrake is a multi-threaded DVD to MPEG-4 ripper and converter. It can encode directly from DVDs (even encrypted ones) or from VIDEO_TS folders. AC3, LPCM, and MPEG audio tracks are supported. The output can be contained in MP4, AVI, or OGM files, and the output audio is encoded in either AAC, MP3, or Vorbis. Other features include support for 2-pass encoding, encoding of two audio tracks, a bitrate calculator, and deinterlacing, cropping, and scaling of the original picture.