hi,ipod always accept the mp4 and H.264 format. u can use this software to transfer dvd to your ipod touch.
this DVD Ripper is one of the Best DVD Ripper software, that 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.
Download here to experience it:
http://www.topsevenreviews.com/aiseesoft-dvd-ripper.html
The instructions guide u:
Step 1: Download and Install this powerful DVD Ripper.
Step 2: Click “Load DVD” button to load your DVD.
This professional DVD Ripper can load three DVD source, you can load your DVD from DVD drive, DVD folder in your PC and also IFO file.
Step 3:Select the output video formats you want from the “Profile” drop-down list.
Then you can click the "Start" button to begin the conversion
If you want to adjust the video effect of your movie, you can click “Effect” button and drag each effect adjustment slider to set the video brightness, contrast, saturation and video volume.
You can also choose a special effect from the Effect drop-down list to apply to your movie
So now don't hesitate to have a try,hope my recommendation can give u a hand.good luck!