I've got an early 2007 Macbook Pro, C2D 2.16 GHz, thats having some severe Superdrive issues. The original drive has been out of commission for months, with the drive actually accepting a disc and spinning up, only to eject it 10-20 seconds after. The other peculiarity is that the drive fails to show up in System Information, its not in ATA Devices or Disc Burning hardware either, nor does it appear in Disk Utility. I bought a known working Superdrive, installed it (even changing out the drive cable in case it was that) and get the same thing; it will take a disc in, spin up a few times, then spit it back out without the computer even acknowledging anything happened. Any ideas?