Disk Shattered

[Joshua May]

I was just shutting down my other computer when I heard a loud POP and a wisp of smoke came out of the front of the computer. I waited a few minutes to make sure there wasn't any kind of fire or something in there, and then I turned my computer back on and attempted to open the D: drive, where the "explosion" seemed to come from, but it took some two or three tries for it to open. And, much to my suprise, a CD, which I had not been using or accessing at all when the comp was on, was shattered. About a third of the CD was actually in the tray, and the other 2/3 appear to still be in mostly small fragments within the drive. I'll see what my dad says when he gets home, but I was wondering if anyone here knows why or how this might have happened and what is the best way to fix it.