I know a DVD Ripper.
It can 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.
It also has strong editing functions of trimming, cropping, effecting and snapshot. It can merge your selected chapters into one file.
It provides more settings for you to choose such as sutitle and audio track and the parameters for the converted audio and video.
For more information and free download from:
http://www.tipard.com/dvd-ripper.html
It is easy to operate. Just few clicks are OK. The conversion will be finished in short while and with lossless quality.
Here is the specific guide for you to follow:
http://www.tipard.com/how-to-rip-a-dvd-to-computer-itunes-ipod-psp-iphone-zune-walkman-creative-zen.html
Hope it helpful for you.