Yeah Windows Movie Maker also did that a lot for me. I used it for making some DVD movie , but it always crashed. I have waste losts of my time and get no idea to fix the problem. If you just need to rip some DVDs, you can try some 3rd party software to do the trick, it maybe easier to use than Windows Movie Maker, here is a guide I found on google: How to convert DVD to MP4 | www.dvdconvertersoft.com
