Wii – “Disk Read Error” and strange scratches

[UPDATE] {I ordered the Wii Lens Cleaner Kit from Play-Asia.com and all the problems stopped. }

Sometimes, when I try to play a certain game on my Wii…”Super Smash Bros. Brawl”… I sometimes encounter an error. Before The Error screen, I can hear two distinct sounds coming from my wii, along with the sound of something sliding. Those sounds repeat several times before the error screen, but If I eject the disk, Turn the power off, and reinsert the disk… It works.

Why my Wii sometimes does this, I don’t know…

Oh, and I might as well tell you, sometimes when I eject my disk, I can see scratches that weren’t on the disk before… It only scratches that disk for some reason and doesn’t damage my other games…

I hope my Wii isn’t… haunted…