I've been burning DVD's for a while now. I started (on Windows) with DVDXCopy and most recently I have been using MacTheRipper and Toast (once I got my new Mac). I have a lot of movies that I burned a while ago (couple years). These are all on regular DVD-R discs. I have recently been using DL discs b/c the majority of movies are much larger than the 4.7 GB. I don't like compressing my DVD files, so that's why I have chosen to go the DL route. I know for a fact that when I used to burn with regular DVD-R, then I would compress the files to make it fit. I assume that this degraded the quality and want to make upgrades on these. I am wondering if there is a way for me to tell the quality of my older DVD-R discs and see if I need to make a better version? I don't want to have to put each and every one of them into my DVD player to see if their quality is alright. Thanks ahead of time for the help.