infael

Found the problem. I googled drvmcdb.sys and found many others had the exact
same problem as I. After installing Vista, Vista tells you it blocked a
program due to incompatibility and recommends uninstalling the program, Roxio
Sonic DLA. Doing that prevented me from being able to get into Vista at all,
through any manner or mode. I had to go all the way back almost to the
beginning of my system restore points to the point where I had uninstalled
Sonic DLA. Thanks MS, for labelling the restore points! I'm back in Vista.

Couldn't find a patch, and Roxio wants you to buy their program. So I've
just left Sonic alone.

Thanks for your help guys!