Thats basically the problem in a nut shell. I can't seem to burn a DVD+R DL, everytime I attempt to do this the system crashes completely and I get the transparent window telling me to restart the system. To me, this feels a lot like the blue screen of death. Anyone else having a similar problem? Have there been similar problems reported? Its definitely not the discs either, I've tried using Philips and Memorex DVD+R DLs and neither work, however, burning this stuff on Tiger was fine, however I'm not sure if Leopard is to blame because i dont remember if I had burned any DVD+R DLs successfully using Leopard. I've got a first gen. Mac Pro with a PIONEER DVD-RW DVR-111D.