Some people actually have developed method to create MD5 collisions. See :http://www.cits.rub.de/MD5Collisions/, there you'll find 2 very different postscript files sharing the same MD5.
There were interesting dicussions about this on Bruce Schneier blog and in his Crypto-gram newsletter, see : http://www.schneier.com/

In reply to Re^3: compare images by wazoox
in thread compare images by Anonymous Monk

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