HEY EVERYONE!

I have a MacBook Pro running os x mountain lion version 10.8.2 and I downloaded play station 1 emulator, PCSX-R, and I have plugin scph1001.bin downloaded, and it’s in the correct place: Users/Keila/Application support/pcsx/bios/scph1001.bin 

But when I try to run ISO I get a message that says “Error! Could not check CD-ROM!” and I know exactly why, because when I go to preferences I can’t uncheck “Simulate PSX BIOS” under the emulation tab… I’ve looked everywhere and I can’t figure it out myself. If anyone could help me even a little I would appreciate it 110%

Edit: I got it, I had to extract the files, never mind.