Superdrive not reading SOME DVD's

[ksawyer]

My Superdrive is not reading all of my DVD's... only some of them. For example, it will read the Incredible Hulk but not The Guardian. The drive spins, stops, spins, stops, then spits out the DVD. I've repaired permissions and have restarted but nothing works. Computer is refurbished, had it since Aug 2007, no longer under warranty. The drive is: Matshita DVD-R UJ-857. Any advice?

I recently discovered that DVD-R's work well in this Mac but not DVD+R's.

Thanks!

 

[ksawyer]

Resolved -Superdrive not reading some DVD

Ok - after some research I have resolved my problem. I need to stick with DVD-R format discs. This applies to the movies as well as the blank media I use. I switched to Sony brand DVD-R's and haven't had a problem since. Previously I was using DVD+R discs.

Kim