Surfing around there are a lot of techniques how to remove cd/dvd scratches
Here you have some of them.
Enjoy!
[youtube Z537As9ehXo]
[metacafe 661486/repair_cds_using_chewing_gum]
[metacafe 751986/home_brew_cd___dvd_buffer]
[metacafe 751986/home_brew_cd___dvd_buffer lirent.net]
[metacafe 547259/remove_scratches_from_anything_using_toothpaste]
[metacafe 748070/how_to_remove_cd_scratches_with_a_banana]
[youtube SqnhHNu_ukU]
