When Sony released the Sony PlayStation 3, the first few models were backwards compatible with both Sony PS1 and PS2 games. Unfortunately, these features were removed in later models in order to make the PS3 more cost effective. A PS3 application has brought back half of that functionality by returning the PS1 compatibility. Now you can use all of the PS1 games that you saved on your computer in the ".bin" format on the PS3.
Plug a USB pen drive/flash drive into your computer's USB port. Click the "Open folder to view files" when the Autorun window comes up.
Download "PS3SX" from the developer's website at dkszone.net or use one of the developer's download mirrors. Right-click the "PS3SX" PKG file after it finishes downloading and click "Copy" from the context menu.
Right-click the USB drive icon that is on the computer desktop. Click "Paste." Click the "New Folder" option on the USB flash drive window to create a new folder.
Type in "psxrom" as the folder name and press "Enter." Right-click all of the PS1 .bin files you have on your computer and click "Copy" from the context menu.
Right-click the "psxrom" folder and click "Paste" from the context menu to save the PS1 .bin files into the proper folder on the USB flash drive.
Unplug the USB flash drive from the computer and insert it into the PS3 USB port on the far right of the system.
Select the "Install Package Files" option and select the "PS3SX" PKG file when the PKG list comes up on the TV screen.
Select the PS3SX icon on the PS3 "Game" tab and the application's menu comes up.
Select the PS1 .bin file from the list of installed PS1 games to run the file on the PS3.