A long time ago I disposed of a G4 tower and removed the hard disk drive beforehand. It looks like this: http://www.upgradecomputermemory.com/images/subcategories/Apple-Hard-Drives.jpg

On a non-urgent note, I'm vaguely wondering how to wreck this hard disk before disposing of it, too. It's OS9 not that that makes any difference, and no was not wiped before physical removal from the Mac.

Smash it with a club hammer?
Immerse in bucket of water?

Both?

smile