I also purchased a 18X LG H42, tried to install Vista after 10 minutes starting to Install got the msg retry can't find file. Used an old DVD Sony Reader only and no Problems. Searched the local LG website , drive model no Data found. For the 18x Super Multi DVD Recorder GSA-H42L from Makro. CD inside the package not compatible with Vista, ita the latest model from LG. Went to LG Germany, found the Drive plus the FW upgrade did it, but no luck using it.
A test report indicated that burnt DVD's play not on 25% of players. So purchased a new Mecer no Lightscribe but Nero 7 Lite and Power DVD all Vista ready workd like a dream. and R200 cheaper. Contacted LG and I'm still waiting because they replied stating a service consultant will contact you.
I'm still waiting, but I'll return it to Makro for a crdit R 499,00