Handbrake (http://handbrake.fr/downloads.php), a DVD “ripping” app for Mac OS X, has been updated to version 0.9.5. It’s free, requires Mac OS X 10.5 or higher and, as of this version, is compatible only with Intel-based Macs.
Handbrake 0.9.5 also has a new Audio Panel supporting >4 audio tracks, VLC detection in /Applications and ~/Applications and multiple instance support.
Handbrake can encode directly from DVDs (even encrypted ones) or from VIDEO_TS folders. It supports: AC3, LPCM and MPEG audio tracks; two-pass encoding; encoding of two audio tracks; and picture deinterlacing, cropping and scaling. It outputs MP4, AVI, OGM, AAC, MP3 and Vorbis audio files. It also includes a bitrate calculator.
However, Handbrake doesn’t handle DTS audio tracks or single VOB files. If you have a DVD-ROM with random video files saved on it (AVI, MPG, WMV, MOV, etc), Handbrake won’t be able to convert these files.