The other day I downloaded the Visual Studio DVD ISO's from MSDN Subscriber site. After copying the images onto the DVD drives, I tried launching the DVDs. No luck! Tried mounting the images as virtual drives. No luck! Tried on a colleagues laptop and it still wouldn't open. Worse still, the DVD (and the virtually mounted image) sends either (depending on how you try to access the disk) the explorer.exe or one of the svchost.exe processes crazy. The CPU Usage goes over 50% and renders the machine useless leaving a force restart as the only option.

I also noticed the DLACTRLW.EXE process refusing to normally shutdown. So just then, I tried disabling the Sonic DLA (Drive Letter Access) which supposedly enables the drag-and-drop feature for my DVD recorder. Tried accessing the DVD again and it worked! Fuckin' Hell!

Googled about the problem and found this discussion on MSDNER.NET about this very issue.