Lately I've been having a problem. Whenever I enter an audio CD into my Macbook Pro, the computer treats it like a blank CD. The disc works fine in my PS3, in my car, in other computers, pretty much anywhere else, but not in mine. From what I've seen, it doesn't treat manufacturer-burned data discs this way, though I haven't tried user-burned data discs yet. This only happens to my audio discs, whether they be in MP3 format or normal audio CD format. What's going on?