So I've got a Lite-On DVD+R drive in my PC, and I'm trying to use it to play retail DVDs. However, when I put retail DVDs in the drive, it makes funny 'grinding'-type noises and Windows doesn't pick it up. The same DVDs work just fine through my laptop's DVD+R drive, however.
I'm just wondering if there is anything I can do with my PC to get it to read these retail DVDs properly, or whether I'll need to replace the drive to play them. If I need to replace it, is there a certain spec that indicates it can play retail DVDs?