I have some avi files that are coming up with the "unsupported format or damaged file" error. I read other threads and downloaded g-spot to see if there was a codec missing, but there isn't. These are just home movies that I filmed using a mini-dv recoreder. I have other files that were taped using the same camera just days before/after the unsupported ones that import just fine, so I don't understand how they are different. I can also view them without any problems using Nero.