CD "cleaning" sprays, do they work? what do they d

[GizmoC]

While exchanging my mp3 player today, I came accross some CD cleaning sprays. Basically, you spray the chemical on the back of the CD and let it stay there for a min. Then, you wipe it off. Sounds nice and simple.

I was just wodering, are these sprays effective? Are they worth buying?(they are kinda cheap).

Some of my CDs have developed "white rashes" on their surface because I store them in those 200 storage CD pocuhes. And over time my CDs get these white rashes/spots (note: NOT SCRATCHES)... is that ok? should I use the cleaning chemical to remove them?

[digitaldoc]

I generally just use a soft cotton cloth and work in a linear fashion from the center out to the edge of the disc.

If that didn't work, isopropyl alcohol is safe in small amounts.

[pika2000]

Rubbing (70%) alcohol works fine. Some "liquid cleaners" are just repackaged alcohol sold at expensive price. Buy a big bottle at your local pharmacy instead.