Things You'll Need
Instructions
Attach your USB drive to your computer. Create a directory on the drive named PS3. Inside PS3, create a directory named "EXPORT." Inside "EXPORT," create a directory named "PSV."
Locate your PlayStation 1 save files on your computer. They will have a PSV (.psv) extension.
Copy the PSV files into the directory named "PSV."
Plug your USB drive into your PlayStation 3 and you're ready to load your games.