I'd love to be able to burn images from within .rar archives, i know it would probably consume alot of cpu and take a little longer... but i'd love it anyway, vlc (www.videolan.org) can play video-stream from within rar's so it should be possible (vls is open source, ctrl-c ctrl-v).
so if you dont hate the idea and have some spare time.... i promise to make a donation!