OK, I've uninstalled the old and completely installed the all new. Everything went through without a problem. Fired up the project again. Ensured MPEG5.1 was off and Stereo was on. There are BeSweet sub-settings (for AC6 and AC3) which I left alone. Tried it with VFW selected and with Internal selected. Same error each time through. Just as a lark, I tried it with "Convert Audio" checked with both those settings. Same error each time. So is it the AVI? It plays fine in WMP, sound OK, video OK but I know that probably doesn't mean much. Here's what I did just a moment ago. I took some screenshots of DVD2SVCD and GSpot and posted them to ImageShack. Maybe a quick look will be able to tell what setting is off: Next thing if this doesn't help - I could try another short AVI. I'll start the search now. Note I've tried 2 other different movie style "full length" .avi-s and got the same result which got me into this. BTW, yes I have converted quite a few AVIs to DVD before this. Many came out OK, a few had audio synch issues. I suppose I could take another different full length .avi and try to use VDub to cut a small chunk off and try that. Sound sensible? (Hope these ImageShack links come out...) Again, I'll be standing by and interested in what might come next. Thanks.