Playing Wi-fi Game With one UMD Disc

Hello to to All PSP Gamers
Playing the same game on 2 PSP over wireless but with one UMD disc
Simply,
Load one PSP up as Host, eject UMD without turning off, click No when it asks to quit, Load the other PSP client game, once both are seeing each other and ready to play put start game on Host as normal, Screen may go black or load a loading screen, Put umd in host, wait for boot up to game, put in 2nd (Client PSP) wait for botup to game
That's it Done and now you should be able to play
Wi-fi Game on two PSP with only one UMD Disc
Works on the following game that I have tried
Ridge Racer
Ape Academy
Need For Speed Underground Rivals
going to try it on other games and with a few more PSP togather .
Cross the finger hope it's work with more PSP
Cheers
Happy Gaming

Sneaky :D