Rather than use the internal CD/DVD drive that comes in the MacBook, I purchased an external LaCie peripheral drive to rip and burn music. I use Max ripper software for Mac and rip as an uncompressed AIFF file. I also use the strongest error correction setting in the software to minimize the possibility for errors in the read. In my experience, lossless files (including ALAC files) have a noticeable degradation in sound quality when burned to a disk so I don't use compression for music I want to listen to critically. Hope this helps.