I've been using Roxio 2009 for 2 years now and never had a problem burning movies etc. I convert AVI files to WMV using Any Video Converter. I then preview them in Windows Media Player to check to Audio and Video Sync. and they match up. I then burn them to a DVD using Roxio. I then try to burned DVD on my DVD player, the movie plays fine till like 40min in, then the lip sync gets messed up. This has happened for any movie i have tried to burn in the last week any suggestions? Would be greatly appreciated Thanks. I also tried using Windows DVD Maker and the same problem happens.