Original Samurai Warriors 3 encountering disc errors on my Wii?

So, just a while ago, my copy of SW3 came in the mail after 4 months of waiting. Excited I popped in the disc and it started working fine...

until I selected the story mode and attempted to start playing. After the "character's" story comes up, this is where the opening cinematic of the character would play, but instead I encounter a disc error. Checking again, this seems to happen with all characters.

Keep in mind, I'm in the Philippines so many Wii's that are bought here are usually modified from the get-go to play the more affordable pirated games, but this doesn't seem to be the case for my other original Wii games since they work perfectly.

Right now I'm attempting to clean it, get rid of the dust, etc. Any tips on how I can get this to work? I'm really beside myself with anger after waiting for 4 months and finding the blasted thing doesn't work properly.

 

get img burn, make an ISO of your game, burn it on a new disc