Admittedly, I'm not that interested in the games themselves but I had to have a little piece of the bootleg scene (from Hacker International, no-less).
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I totally believe you! ;)
I also have some unofficial disks, although not Hacker International. :) It's very interesting that there are so many different types of disks manufactured by unlicensed makers. I know that Disk System piracy was big in Hong Kong and possibly Taiwan since it was cheap and easy to import the machines from Japan.
Copiers were big here for SFC, made SFC games much more affordable.