Hi, I have a 20" intel iMac core duo - i think it might be rev A the superdrive refuses to read discs - i pop them it, it spins them round, makes a CRRRK sound - then spits the disc out again So I'm thinking to pop open the casing, and replace the drive with one from OWC or Fastmac or similar. However, I've looked and looked for instructions on how to open the casing and get to the dvd drive, but cannot find any. I can find ones for the G5 imac, but not the intel one. I read somewhere that the internals are not the same. Am I just not typing in the right search string into google (or even this forum)? or will the G5 instructions suffice? Had anyone tried this previously?