Under the PS2 section, the games with the ".Hack" naming scheme do not appear to load in PCSX2, and upon attempting to extract the ISOs directly from the .GZ/.TMP files, 7-Zip will give a generic "File Error" and not extract the full game file.
As some of the ".Hack" games also appear in this list as "Dot Hack", we have a duplicate of one of the affected games. The games named as "Dot Hack" behave as expected, assumingly due in part to having a compressed file name that does not begin with a period.
As .Hack G.U. Vol 1 already has a secondary copy of the game that works, here are the four games that would need replacements:
.hack - G.U. vol. 2 - Reminisce (USA)
.hack - G.U. vol. 3 - Redemption (USA)
.hack - Infection Part 1 (USA)
.hack - Mutation Part 2 (USA)
Screenshot is of the broken .Hack copy, along with the working "Dot Hack" copy of G.U. Vol. 1.