Superdrive problem (Help needed)


I got my Mac Mini with superdrive delivered about a month ago. Today I tried to burn my first DVD, using Memorex 8x DVD+R recordable DVDs. The problem is that my superdrive seems to reject the DVDs - I´ve burned CDs, working fine - I insert a blank disc as told, then wait, the superdrive seems to try to read the disc three times, then it ejects it. Is there something wrong with my superdrive?
Sounds like the action the drive takes when it does not use a format of disc. I'd try a DVD-R or DVD-RW and see if they work. Sounds like its rejecting the +R.