If I put a DVD into a FrontRow-using iMac, will the DVD automatically play using the DVD Player app? Also, can you describe how the DVD part of FrontRow works, user-wise?
If you look at the DVD Player Preferences, there is checkbox for whether the app begins when a dvd is entered or not. It is checked by default. As for FrontRow, I don't have my iMac yet, so I'm not sure, but have you at least seen the short clip of using it on Apple.com??