I have just bought MB Pro from the refurb store and I have no problem with DVD R or RW but I have some data that I burned within 10.5 on my old MB and when I insert the DL disk into the MBP it will not read it and just spits it out.
Any ideas? Cheers
Apple MacBook Pro 2.4GHz 2GB, Mac OS X (10.6.2), .Mac
Your MBP should read a DL data disc. They are harder to read than SL discs, however, and you need to be sure they are scrupulously clean. If so, and it still can't read it, as CMCSK says, get in touch with Apple support.