Bought this to help clean a 2008 MacBook Pro cd/DVD drive that was completely non useable. When a DVD was inserted, it would make a noise and spit it back out. I bought the Allsop DVD drive cleaner cd and stuck it in there. The first time it spit it out. The second it last a couple seconds and spit it out but the third time it went through the whole cleaning process. Apple laptop drives somehow are very sensitive and need cleaning. This is a must for any apple laptop owner. Also cleaned all my DVD players.