Well if your like me and most people out there you probably have multiple PSN accounts.You can download all 4 of the "Welcome Back" PSP games between 2 accounts but you will notice that the 2 games from account "X" will not run on account "Y".This is because they are tied to the account that downloaded them..but we have a solution.NP Decryptor
This is a nice little app that has mostly been used for Piracy as it converts PSN retail titles to ISO the people distribute them,but that's not what we are doing here.What we are doing is making the best of the "Welcome Back" package.
Now what you do is really simple.
First rename the .PBP of the game you wish to convert to NP.PBP.Then take the EBOOT.PBP and npeg.prx from the link provided and copy them to the same directory(ms0:/PSP/GAME/GAMEID/).
Then it's as simple as scrolling over to the icon and launching it,and pressing X on the menu.
Keep this in mind:
The account on your PSP MUST be the account that downloaded the game at time of conversion or you will get an error and said account MUST be activated.
Once it's converted to ISO you can run it on any CFW.Can even dummy it down with UMDGen to make it smaller.
Also note when switching accounts it is best to deactivate the system first as to prevent it from being banned for too many activations.
Now if anybody says "Oh Fox you can't post this here.We don't support Piracy" can S my D cuz this goes against no rules nor is it condoning Piracy..like I said it's make the best of FREE content given to us.