How can I capture from my DVD drive?

how can I capture (avi) of a dvd playing in computer dvd drive? Can anyone help with this? I just would like to play a dvd in the computer and be able to capture a small clip as a avi. Please help… Thanks

If your DVD is not copy protected, you can copy the files from it but video files, in the original language and without subtitles (separate files) will have extension VOB, and are originated from Mpeg2 files.
If you want AVI files you have to re-encode them, using the appropriate software.
Look at:
where you can find info and guides for various video related tasks.