What format do you need it in to burn it, DV? Is it MPEG?

Download.com has converters that are free to download, and it'll tell you its limitations, if there are any - such as a trial period or whether it'll put a watermark on the output.

Just run a search for AVI to ___ (whatever format you need) converters, and you should be able to find something.

Or if you want, email one of the files to me, and I'll see if I can get it converted on what I have.