I installed Windows 7 RC 7100 on a new hard disk and did not install any other software.I tried to create a DVD-Video by insertingJPG images, AVI files and some MP3 files as slide background music. I wasnot able to Preview the movie and when I tried to burn it to DVD, it complained "Error Synchronizing Project". I confirmed temp directory exist and tried to deselect all filters / individual filter, still the same. I tried to installDIVX AVI Codec still the same. Then I suspect I have included too many JPG/AVI files. After consolidating some AVI files, it did burn a DVD successfully. Great, however I found the background music for slides were gone. I open the saved project again, "Error Synchronizing Project" popped up again! Any solution?

I tried the same in Vista, problem still persist. Eventually, I found out the problem was caused by some Chinese characters in MP3 tag, which appeared as garbage. Replacing those tags with English, the program works fine.P.S. I also tried to import the MP3 in Windows Movie Maker 2.1 (XP SP3) and 2.6 (Vista).They complained there was no corresponding codec installed!I hope Microsoft can fix the bug in these programs soon.

Good evening, Were do I find or how do I get to these Chinese characters in MP3 tag so I could replace them? Thank you, Nuyoricangirl70

To prevent the "Error Synchronizing Project" you must convert your audio files from MP3 (or other) to WMA (Windows Media Audio file). You can get a free converter from CNET, and it is really easy to use. The link is http://download.cnet.com/Koyote-Free-Mp3-Wma-Converter/3000-2140_4-10442362.html. Once I converted the audio files to WMA I had no problem and the DVD was created perfectly! You most likely will have to start your project over from scratch, but going forward you won't have any problems.