16.900 (plus some podcasts)
Most of it is either Apple Lossless or iTunes AAC, with only 217 MP3s to add to these figures. Some of those were free downloads from artist websites or purchases (Dan F's "Multistory" is only sold through his own website for example), some of them are evil. 😱
Technically, CDRs from friends are legal in Germany as long as you don't charge any money for them and keep it at a reasonable rate (and don't break any working copyright protection, although that term is as hard to grasp as a soaped-in piglet) but even with them substracted from my list, I should come in at around 15.000 tracks. I can even take pictures if you don't believe me. 😉