DVD --> Edit in Premiere --> DVD?

Seems like I should convert the .ac3 file to .mpg using besweet, and then edit in Premiere. Then convert back to .ac3 after editing/before authoring?

I am unsure of the merits of doing this. Especially since you wish to have a 5.1 soundtrack. mpeg 5.1 audio is pretty dismal and does not really compare to AC3. Also re-encoding the audio twice to different compressed formats is going to severely affect quality. Can you not decompress the audio to a LPCM wav file then recompress this after editing? I don't use Premier but surely it could handle this?

Thanks for your info, I got some other "must-do" things so I haven't had time to start even with how to convert the AC3 to a WAV file... ;) I will install Premiere tonight - have built a new computer so it's not installed anywhere - but it's the last version before Premiere Pro came. I remember, because I thought the upgrade price was to high since I hardly use it anymore. Until now.

Found an old version of BeSweetGUI and got it to work :)