[beagle3]

I guess they are on a backup or misremembered - but examples are really easy to find on the net if you want them:

http://th.informatik.uni-mannheim.de/people/lucks/HashCollis...

http://www.win.tue.nl/hashclash/ChosenPrefixCollisions/ has a multicollision: 12 PDF files with different content and the same MD5 hash.