Are you sure the AVI files aren't that way before you burn them? Do they play OK on your computer before you burn them? Are you making the AVI files DVD compliant or just leaving them as raw AVI files. What software are you using? What is the source of the AVIs? Internet?
Are you using good quality media like Verbatim, Taiyo Yuden, or Made in Japan labeled Sony and Fuji disks? It sounds like it could be a media problem. What brand of media are you using and at what speed are you burning?
Try outputing an iso image file from Nero and then burning that with ImgBurn.
You might try making them DVD compliant and burning to DVD. It's a pain because it takes time to do so. You might try using NeroVision from the Nero Suite. I assume you have that if you're using Nero.
You might try DVD Copy 4 from Intervideo (free trial):
For better quality you can convert the AVI files to DVD compliant video files using DivXtoDVD software. Depending on the size of the files you can normally get 2 movies onto one DVD disc. It is worth remembering that all AVI files are heavily compressed and even using decent software to convert them you will still not get a perfect image - the picture is normally fine to watch but you can still get slightly jittery movement, though nothing like the problems you mention.
Well the point of buying a DivX player was so that i didn't have to convert to DVD every time, and so that I could fit numerous video files on one data disc.
I'm not really using one particular brand of media, but at the moment I'm using Maxell. But i don't think that's the problem, I'm pretty sure now it's my burner.
tgbob, if you convert the AVIs and don't have a problem, then it's likely the DivX player at fault. If you convert and still have the problem, then it could be the AVIs, the burner, the media, the burner's firmware, the software, etc.
Do you have a friend with a burner or DivX player nearby. If you do, then test your burns against that player. If they are OK on that player then your player is at fault. If they aren't OK, use his/her burner to burn the AVIs and then test again.
Maxell may or may not be good media. It depends on whose media they're rebranding at the moment or whether they're using their own. Maxell used to be good, not so much anymore.
Also you didn't say at what speed you were burning.