In Continue with my last post about selection of upgrade MBP 2.2GHz HD. I bought a 500GB WD 5400rpm HD last Friday to change default Fujitsu 120GB one. But, after replaced the HD then goes to reinstalll Mac OSX step, I found my optical drive refuse to read every disk I put into including Leopard OS disk. Come to think of it, it has been whole years since my last time to use it. So here comes the Q, Would that be the malfunction of optical drive or just cozd by dusts? Any ideal of it, or does anyone have the same experience?