Yeah, no conversion necessary. As well as DVD player software, other media players like VLC and Media Player Classic all play DVD folders (and often disk images) just fine.

[edit]I'm too slow at posting! Ingo Sucks, it sounds like you needed to upgrade the specs of your computer more than you needed a DVD burner![/edit]

By the way, Lightscribe isn't exactly new and I don't think it is that fascinating, but I can't argue that! There are rumours of a full colour version on the horizon, now that would be more interesting.