CD Lens cleaners

[nidave]

Its bit of s strange question and its been bugging me for 2 days now.
How to CD lens cleaners work. I know they have a little brush but when I ran it it told me to play a certain track - (I always do what I am told by mystical CD Voices) does it have some sort of calibration information on the CD that the Laser recognises and makes adjustments with?

[marksi]

Its bit of s strange question and its been bugging me for 2 days now.
How to CD lens cleaners work. I know they have a little brush but when I ran it it told me to play a certain track - (I always do what I am told by mystical CD Voices) does it have some sort of calibration information on the CD that the Laser recognises and makes adjustments with?

I'd be amazed if it did. I do that job with a paintbrush.

[Nick Harvey]

No, you just have to play the track so the heads move about and get brushed as they go past.

Not very mystic, I'm afraid.

[Alexia]

Its bit of s strange question and its been bugging me for 2 days now.
How to CD lens cleaners work. I know they have a little brush but when I ran it it told me to play a certain track - (I always do what I am told by mystical CD Voices) does it have some sort of calibration information on the CD that the Laser recognises and makes adjustments with?

Simply that the brush is located on the CD where Track 11 is. Track 1-10 of mine is "Please play Track 11" in a variety of different languages.

[nidave]

I feel very let down - I would have thought as CD technology is very mature they could have agreed on a standard for calibrating the head using a data track. Oh well.
The track I am told to play has music on it saying the cleaning is nearly complete - I would have thought if it was where the brushes were it would not play

[stu]

I remember manually moving the laser on one Playstation so that the brush would actually touch the lens and in the end didn't seem to make much difference. Always use some cleaner on a bud these days.