WMM is freeware, MS bundle it with XP,
There is the whole issue of licensing etc.
"DV-AVI" is a type of AVI for digital tape.
So for this example, your DivX compressed
AVI's are not DV tape compliant and would
have to converted. Conversely, WMM is not
compatible with many other propriatary type
AVI's, and so would not be able to import
them, but you may find any number of non-
approved plug-ins that claim to "enhance"
WMM's file type compatibilty, of course at
your own risk.
http://www.videohelp.com/
http://www.videohelp.com/tools?convert=AVI to SVCD