I got a chance to look at the European release of ICO, and
pretty much immediately noticed the new files SRCFILE.TXT and
TRFILE.TXT. SRCFILE is the complete 'objdump -d' output of the
game, with the debugging line numbers, and TRFILE is the
complete linker log. Which includes these function names:
This matches perfectly with all the stuff down here. I'm going
to stop looking now, in case the Japanese release has Fumito
Ueda's credit card numbers on it or something.  I haven't
suceeded in contacting anyone about this; SCEI and ONICOS/Izumo
don't read their email. Someone who speaks better Japanese than
me should try writing them a letter.   ICO, a video game by Sony
Computer Entertainment for the PlayStation 2, seems to be using
parts of the GPL library libarc for compressed data handling. It
doesn't credit the author or mention libarc or the GPL.  This
isn't a big problem in terms of code — the two files from libarc
used are under 1500 lines put together, and one is a heavily-
edited copy of inflate.c from