[andex]

If u r sure its V4 than try this Dave Mirra swap trick and see if its work (personally I never use it )

First time
step 1:Load AR2 disc and keep the fingers on the reset button
step 2:Go into codes and select dave mirra 2(ignore if already selected)
step 3:Press start
step 4:Eject AR2 disc and insert your dvd original(prefer devil may cry)
step 5:Wiat about 10 secounds for dvd to stop spining
step 6:Select with codes and press X
step 7:Then press X again
step 8:You should have a error message
step 9:Lets go off the reset button
step 10:Take out the original dvd
step 11:Put in your dvd copy and then close cd draw
step 12:Press X ,press O and then press O again
step 13:Press start and select without codes and finally press X.

The game should load...
Like I say I haven try it myself ,so keep us posted if its work...