While using Mac The Ripper to rip your Commercial DVDs, you might get error massages saying that the DVD has bad sectors. As a matter of fact, bad sector error is a common problem that occurs while ripping DVDs with MacTheRipper and it can be caused by many different reasons.

It might because your DVD is dirty or damaged, for instance, scratched. If it's dirty, then you can fix it by cleaning it, wiping from the center outwards. If it's damaged, you will still be able to play back the DVD, but there will be glitches. Mac the Ripper 3.0 might handle it better, but just don't expect extraordinary improvement.

Sometimes the rip is finished while you won't be able to play back the DVD normally or certain segment is missing. It might caused by the DVD protection like ARccOS protection or RipGuard protection. MacTheRipper works fine on the new ARccOS discs for most users, but not all users have the good luck. The 'bad sector' errors are still common for ARccOS discs.

Here are some possible solutions for sector errors caused by DVD protection or any unknown reasons. Hopefully one of them works for you.

1. Possible Solution 1: If there is a message pops up asking you to "delete" or "PAD VOB", just select "PAD VOB". Some DVDs have bad sectors put into them on purpose to mess with making copies of them, MactheRipper pads those areas of the copy so it will work properly.
2. Possible Solution 2: In "Mode" window, change "Full extraction" mode to "main feature" mode. This works for discs that bad sector are not added to main feature of the movie.
3. Possible Solution 3: Update to MactheRipper 3.0, which is able to remove RipGuard copy protection.

Bad Sector Error is a sophisticated problem and solutions workable for one user might not work for others, even for the same title disc released by different manufacturers. So if you can't rip it successfully and you can't find easy solutions, just switch to other popular DVD ripping programs. iSkysoft DVD Ripper for Mac is an all-in-one DVD ripping program, which can convert both encrypted and unencrypted DVDs to VOB,MP4, WMV, AVI, MOV, M4V, 3GP, MPG, MPEG, FLV, etc. With this powerful software, you can easily backup your DVD collections or convert them for portable players like iPhone, iPod.