Originally posted by Pepzhez
No need to bother with extracting the MPEG-2 stream. Just use DVDBackup - nothing could be easier. I forgot to add that you need Toast to burn the resulting disc image. DVD Studio Pro and/or iDVD is useless for this task.
Again, this has never been tested in a U.S. court, so it is not a crime to back up your DVDs (in the U.S.)!
Of course you can extract the MPEG-2 stream and reencode to MPEG-4. MPEG-4 is a much better and more modern codec than MPEG-2, the DVD standard. (MPEG-2 isn't all that efficient or flawless. In fact, it's not a very high quality codec and it is full of motion and other noticeable artifacts.) And, yes, you can then fit the results on a CD-R with no loss of quality. However, you will be stuck with playing this only on computers and it will be a time consuming hassle; getting the audio and video back in sync is a real exercise in frustration.