Who says you can't play Playstation one games on your computer.
With ePSXe you can play PSOne games on your computer.
Install it by store it on program files folder
and copy from exe files as shortcut to folders you want to use, and run it.
Download this files for free! (under that link), uploaded by myself.
Warning: 4shared has only allow to download for 4shared members only, if you're not a 4 shared member, CLICK HERE! (MEDIAFIRE LINK)