I don't have exact numbers but my CD collection is well over 1,000. That number would be higher but through the years here and there you lose some along the way from moving or whatever. For DVDs i've probably got around 50 that have to do with music. I've also got hundreds of cassettes lying around various parts from my place that date back to when I first started collecting music when I was a youngling.
3/20 - Dream Theater