120 Db S/N is very good. I really liked the sound of the Sony HU when I had one in another car. Very fluid, much less jitter than other units I've tried. Sony is one of the few HU that actually sound like they are putting out close to their rated power.

I only keep burned CD's in the car. CD's take a beating in the car, even if you're careful. If one of your passengers likes your music, you can just give them the disk, and make another.

I only use Maxell black CDR's in the car, they are the best disk, and skip the least in my testing. Unless you want to go nuts for something like MFSL's ultradisk.

John C.