I recommend you a DVD Ripper.
It could easily rip DVD to MP4, H.264, AVI, MP3, WMV, WMA, FLV,
MKV, MPEG-1, MPEG-2, 3GP, 3GPP, VOB, DivX, Mov, RM, RMVB, M4A, AAC,
WAV, etc. with super fast DVD ripping speed and excellent image and
sound quality.
It also can edit the DVD movies, such as trim a video clip, crop
the movie, merge several titles or chapters into one file and so
on.
Details: http://www.aidownloading.com/aiseesoft-dvd-ripper.html