Has anyone else had this happen?? I have a MBP (early 2011) and I'm going through the Fresh Prince of Bel-Air DVDs. I'm on season two. I put in disc 3 and it loads the menu for disc 4. Not only that it plays all the episodes from disc 4. I then put in disc 4 and it loads the menu and all the episodes from disc one. I've watched through these DVDs before and they all loaded properly. Is there possibly something wrong with my optical drive? Or is it something to do with the DVD Player app memory?? Also how many movies does the DVD Player app remember?? Seems to remember a lot of them. EDIT: Even VLC player loaded disc three as disc four.