First off, I appreciate your effort of assembling this collection. However...

If I understand copyright and IP laws correctly, by simply recording the sounds that emanate from OS does not magically make them APSL-compliant or let you distribute them without expressed consent from their author (in this case Apple). I looked at the Apple's developer site and there was no mention of allowing other users to redistribute desktop sounds under this license which mainly concerns the source code and is geared towards the users of their developer tools (which to the best of my understanding have nothing to do with their desktop content -- otherwise Apple would not be so vigilantly pursuing all of the rip-off creations of their desktop environment with "cease and desist" orders, i.e. http://fileforum.betanews.com/detail/Yz_Dock/1037167525/1). Please correct me if I am wrong...

I've been looking all over for a .wav of the Mac System Beep, you know, the one that you hear whenever a system message pops up on your screen. If you know where I might be able to find this, I would love to have it.

Somehow, for some reason, I really don't think this is GPL'ed material. Unless you managed to get Apple to let you use these, or they GPL'ed it themselves, this is copyrighted. I hope you can prove me wrong.. :/

Sorry about that. I meant to pull it down to "Other" and write in APSL.

http://www.publicsource.apple.com/apsl/

Wow! Thanks for proving me wrong! (no sarcasm intended) I really was hoping I was wrong, because the classic Mac sounds were awesome. Thanks for pointing that out. Good to hear Apple wants to donate more to the community.