I had a 708UF external plextor, I use Nero 6.6(I'm extremly happy with this nero, and I have NO wish to upgrade to 7.0) have you heard of any conflicts between running 6.6 & 708UF. I recently purchased a new external burner..plextor 716UF, it hasn't arrived yet, so I'm not usre if it will have the same conflicts. I run windows xp, HPa820N, with an HPburner. I wanted the plextor because my HP burner will not play nice with CLONE2.