http://www.hardwaresecrets.com/article/77
歯磨き粉で CD の傷をなおせるらしい
via: MacGyver Tip: Fix scratched CDs with toothpaste - Lifehacker
http://www.lifehacker.com/software/cds/macgyver-tip-fix-
scratched-cds-with-toothpaste-155741.php
http://www.hardwaresecrets.com/article/77
歯磨き粉で CD の傷をなおせるらしい
via: MacGyver Tip: Fix scratched CDs with toothpaste - Lifehacker
http://www.lifehacker.com/software/cds/macgyver-tip-fix-
scratched-cds-with-toothpaste-155741.php