ok have a friend with a problem and I can't figure out anything to help. I'll try and be as detailed as possible. ok, has 2 dvdr drives installed, when he goes to copy a cd with the original in one drive and the blank in another the cd does nothing but skip when it's playing. Has the hd on one IDE cable and the two dvdr drives on another cable one set to master and one slave. we have tried updating his via chipset drivers. Another guess that I have and we haven't tried yet is that he should have the drives on separate IDE cables. Also, he asked me about the audio cable out of the dvdr drives but I thought you didn't need to use those anymore. As for everything else OS is Windows XP and burning software is nero 6 that came with the drive. on a weird side note he burned one disc where the first five songs didn't have any sound and then 6 played perfectly!!?!?!?