A book truly overflwoing with wonderful effects and routines. Magicians have caused everything else to burst into flames. Wallets, Cigarette Boxes, Videos. You name it, it's burned. So, a CD was the logical choice.
CDs are wicked popular.
You can't even hardly buy a vinyl record anymore. Besides, if you tried to make one of them burn, they'd just melt. The case looks perfectly normal. Just like a CD you'd buy at the store. A great gag.