WISEWEASEL CSS is CSS, it's all the same. But there are different methods for cracking it. We've actually found that the different methods are pretty much as successful as each other, and it doesn't always work. Version 2.0 is in beta testing, and it has better CSS compatibility. It still can't crack them all, but it's getting closer. Oftentimes, it's just a problem of a dirty or damaged disc. Some drives don't like DVDs from other regions than the one they're set to. Look for MTR 2.0 soon, and email us at mtr@wormintheapple.gr if you still have problems.
(Version 1.5.6)