Here's a video by some guys who are slow motion photography geeks.  They spin a CD up to huge speeds on a vacuum cleaner motor and when it gets to 23,000 rpm, the disc starts to warp, then it fragments into hundreds of small pieces.  They've filmed it at incredibly high speeds - up to 170,000 frames per second, whereby the 4 seconds of footage takes over 7 hours to watch!  However the action happens over just a very short part of that time.  Worth watching until the end!