Very simple idea, worked for me
Used it to clean a DVD type sat-nav (Honda), Kept getting "disk read error" due to dirt on lens. The player is 12 years old and this had happened before, being built in its almost impossible to clean. Used one of these disks in the past and after a few goes everything was sorted.
Remember to prick the nozzle with a pin before squeezing the bottle, or it will "pop off" and all the fluid will come out in one go.
After using allow a while for the fluid to evaporate inside the player before inserting a CD or DVD.
Don't give up if it doesn't appear to have cleaned it the first time, wait a while and try again.
Keep it somewhere you will be able to find it for next time...I didn't and had to buy this one a few years later.
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