Hi Everyone, I can't seem to find this answer anywhere (or at least not in the last 90 days) so sorry if its been brought up before. I use DVD Shrink and Nero to back up my DVDs. Just last night, when I went to burn the files to the DVD, the Burn button in DVD-Video back is greyed out and i can't burn. The progress bar at the bottom is "waiting for disc drive" and when its complete, it says, "The Drive is not initializing! perhaps due to a defective disc". Now I tried TDK, Ritek, Fuji and Verbatim DVD-Rs as well as CD-Rs up until last night so I don't know why it wont burn now. Somehow I think its Nero because I can still use the drive, back up things to CD and do drap and drop with DVDs. Watch movies with the drive and everything except burn with Nero. Anybody else have this problem? By the way, the drive is a Sony DRU-510A. Thanks for your help!