So, I'm trying to Replace the InGame Arenas Thumbnails with a Custom one (WCW Nitro). I found the files. Is the MCAS.pac that's inside MatchHD.pac. However, everytime that I try to compress (Even the same fresh decompressed original) the 1B59.zlib.uncompressed, I get that files need to be the same size. I've tried fix via Hex, nothing. Anyone has any Idea?