.avi
AudioVideoInterLeave
Admit it... you are now far better off knowing that, right ?
Probably not !
Anyway... What are you actually hoping to do ?
I assume it is to "make an .avi file
into a DVD recording that will play on most home DVD players... Right ?
Don't bother trying to do this with any bundled Windows applications...
One of the easiest apps to use for what you wish to do is NERO...
Your post is not really specific to LimeWire so I have moved it to the Tips & Tricks forum.
Have a long look around here in the Tips & Tricks forum for 100s and 100s of other posts that will give you a lot of info re: ripping, re-coding, burning and... and... and lots !
p.s. DVD does NOT mean Digital Video Disc...
It is actually Digital Versatile Disc...
That will for sure get you a free drink and a punch in the knows in most bars !!!