Hello, I need a quick bit of help if anyone can offer it. My burner is a sony DRU-500A and it is all fine and good, but it only has a 2x ripping speed so i decided to get an additional Lite-on 166S to rip a bit faster. Anyhow, the lite-on is really fast but when ripping many of the discs in file format (selecting everything) or iso format it has had trouble cracking some of the dvds (about half of the six i have tried) and it says a block was not vulnerable (using DVD Decrypter). Oddly enough the sony can rip them just find and doesnt even seem to have to crack the data (it doesnt even show the little "Decrypting" progress bar). Is there something I am doing wrong with my Lite-on? Has anyone else seen this? Even if someone else has this drive and doesn't have a problem I would love to know. Thanks everyone.