G'day mick37 and welcome to TSG.
Your asking quite a few different things here:
Firstly, if your reffering to the problem of DSO exploints not being fixed with Spybot S&D there is a patch available to fix this:
http://www.majorgeeks.com/download4392.html
If you want to burn an .avi to dvd have a look at:
http://www.videohelp.com
and have a look through their guides and forums for info - trust me they will have it.
or even check out
http://www.doom9.net/
I dont know too much about the dvd-ram format apart from it being expensive to buy blank media! haha. i couldnt find any info, but hope you do soon,
hope this helps,
Late,