Hi all... I am trying to burn a music disk with iTunes. I am using CD-Rs. When I insert the blank disk, the computer recognizes it as a black disk and acts accordingly. Then, I click "Burn Disk" at the bottom of the iTunes window, and the burn process starts. Before iTunes begins to write the songs to the disk, it is automatically ejected and an error message appears. It reads: "The attempt to burn a disk failed. The device failed to calibrate the laser power level for this media." And I am presented with "retry" "cancel" or "next." Does anyone have any ideas on how to fix this? It seems to be a hardware problem, at least according to the computer. I am running the latest OS X with the most recent update to iTunes on a Macbook Pro 1st revision with 2 gigs RAM. Thanks in advance.