lol what do you expect us to post back when all you say is "I GOT A WII DVD ERROR WHILE TRYING TO PLAY BACKUPS"
how did you mod youw wii. what error did you get, what media are you using, what burner are you using. do some games play and others not, etc etc etc
give us information and maybe you will be helped.
on my wii i cannot play a single game that i have burned myself(got 3 burners 2 nec from 2006 and one sony from 2005)
while the new nec from my mother will burn the games fine for me to play(the games i burned do work on other wii's, i just guess my wii wont like the dvd's burned with an older burner