i use clad dvd (google clad dvd, it’s free) to rip the files to m2v mpeg 2 streams.
Then I use procoder to transcode to quicktime.
procoder is a bit costly, so if you need free transcoding software, virtual dub works too. (google virtual dub) you’ll get .avi’s which you need to transcode again with premiere to quicktimes. I suggest doing all transcoding with uncompressed avi & quicktime settings. They’re big, but the quality stays.
import quicktimes into avid.
there might be quicker tools out there. i don’t do this unless I absolutely have to. it takes quite a while.