Have mercy on me, I am new to emulating.

So I downloaded the zip from ep, extracted, mounted the iso, and the image file is not working. A dialogue days the image may be corrupted. I also did not see any sort of installer or files with the image file that may give me a BIOS rom like pcsx2 asks for.

I've used pcsx with other roms, works fine. I didn't try another rom of Katamari Damacy because I don't know of any other place to get one!

7Zip did say there was "data after the payload data" and noted 1 extraction error. I updated my 7zip just in case and same error.

My specs, for whatever reason:

Intelcore I5-7200U CPU @ 2.5Ghz
Intel HD Graphics 620
8GB Ram
Windows 8

Using PCSX2 v1.4.0