Ok, here’s a situation for you: you are very exhausted from work and just wanted to sleep on any surface that’s soft. You saw the couch. With all your weight, you drop your body on the couch when all of a sudden, you heard a crack. Uh-oh! You forgot to remove the DVD disc of your favorite movie on the couch yesterday when you watched it for the nth time. If this happens to you, no matter what, do not even try to insert the DVD disc on your DVD-ROM. The crack will only damage the lens of your ROM and chances are, you might be replacing your player in a very bad timing (tight budget perhaps?).

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