try a fresh installation?
the sd card is not required as long as you're apps are saved on a fat32 HDD. The only things that ONLY work with an sd card and not a fat32 HDD is anything bootmii related (and IIRC also the sega master system and genplusgx forwarder channels)
about super smash bros brawl, it sounds like your backup of the game is messed up. Some older versions of cIOS had a bug effecting dual layer games. So if you used a buggy cIOS to rip the game then that would explain your problems. Basically, I would rerip the game using the latest recommended cIOSs and hopefully that fixes your problem.
Cheers and Merry Christmas
Your laser is dying. Thats the only thing that I can think of that could cause your issue.thanks for your reply i should have made a couple of of things clear ,the apps are stored in the system and i do not have a hdd conected and the game is original disc
but the problem is only when playing ssbb any other game is working with no problem ,remember its also the game i used to softmod so is this the reason why and im thinking that maybe it has written some files on the wii after the softmod or maybe on the sdcardYour laser is dying. Thats the only thing that I can think of that could cause your issue.thanks for your reply i should have made a couple of of things clear ,the apps are stored in the system and i do not have a hdd conected and the game is original disc