Instructions
Insert your preferred game into your PSP.
Click the ̶0;Select̶1; button. Scroll to the ̶0;USB Drive̶1; option and select ̶0;UMD Disc.̶1; Exit the menu.
Connect your PSP to your computer by using the USB cord.
Scroll to ̶0;Settings̶1; on the XMB menu and select ̶0;USB Connection.̶1; The AutoPlay menu will appear.
Select the ̶0;Open folder to view files̶1; option on the AutoPlay menu. The UMD will appear as an ISO image.
Right-click the ISO file and select ̶0;Copy.̶1; Paste the file in your preferred folder or save it to your desktop. Repeat Step 1 through Step 5 for each additional UMD file you want to transfer to your PC.