It is supposed to be very rare. I don't know how rare. I don't think I have ever seen it happen by accident. At least I have never noticed. Even though it is rare I try to avoid programming with the view "that probably won't ever cause problems".

I was curious so I googled and found two postscript files with the same MD5 hash. To be fair someone did set out to generate two files with the same MD5 checksum.

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

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