So i'm in the process of reliving some games I used to play. I installed 7zip920 to unzip my roms. I downloaded a pokemon gold rom off of (google for game roms), and saved it to my computer. The file appears on my computer, I click on the 7zip file manager, click on the pokemon file, then press extract. Then it tells me I cannot open file pokemon gold.ink as an archive. Is there somthing i'm doing wrong?