A: Yes. Use a USB to copy the SAVEDATA folder from your PS3. On RPCS3, right-click the game → Open Custom Configuration Folder → paste the save into savedata/ .

Now go install the game.

For owners of a or HEN (Homebrew Enabler) PS3, a PKG file allows you to install the game directly to the internal hard drive, bypassing the need for a physical Blu-ray disc.