Tip & How-To about Audio Players & Recorders

Protect the lens in dvd,vcd,mp3,blueray players

Always have a disk/cd in the player .this prevents dust formation on top of the lens.

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1 Answer

Onkyu DR-S2.0


hi, failure to read disk means that the needs cleaning or replacement but before replacing we need to try first to clean the lens manually..
you need to open the top cover of the player by removing the screws.The lens is situated right at the center of the CD mechanical loading system...It is like a small crystal that focus on the CD...use a cotton buds moistened with an alcohol (rubbing alcohol) gently wipe it on the lens top to remove dust accumulation..let it dry then try to play the CD.. consider also the CD format you are using make sure that they are compatible with player.....thank you and good luck let me know if you need further assistance..

Jun 06, 2012 | Televison & Video

1 Answer

Upon putting dvd into player it will not load and screen says"no disc" please help!


Is this a problem with all disks or just some home recorded ones?

If all disks try inserting a cleaning disk (dvd or cd doesn't matter) or cleaning the lens with a small soft brush to remove dust.
If only home recorded ones it may be they are in the wrong format some players will only work with R- format disks others require R+ format.

Feb 25, 2011 | Toshiba SD-P71S Portable DVD Player with...

1 Answer

cd not working say disk not workable


Make sure that you are using a proper audio CD - some players will not work with computer DATA disks, especially re-writeable disks.
Those that do accept computer disks often only like one format either R+ ( and RW+) or R- (and RW-). Most do not accept both.
If your system will not work with any disks, including proper professionally recorded CDs then try purchasing a CD cleaning disk (a computer CD/DVD drive cleaning disk will work okay). It is like a normal CD but with a tiny little brush mounted on it, which will clean the lens of the laser unit as the disk spins.
You can also try cleaning off the lens by opening the lid of the player and using a small paint brush (dry) to remove any accumulated dust.

Feb 10, 2011 | Bose Wave Radio

1 Answer

ND message


It might be an older CD player that can't read computer-made discs, or it could be a disc incapability... If you sure that the system supports the disc's format.. And it won't play other discs... try to clean the CD lens. CD lens cleaning discs: Every CD, stereo equipment, department, discount, store - and even sidewalk venders - carries CD lens cleaning discs. Are they of any value? Can they cause damage? I generally don't consider CD lens cleaning discs to be of much value for preventive maintenance since they may just move the crud around. However, for pure non-greasy dust (no tobacco smoke and no cooking grease), they may not hurt and could even do a good enough job to put off a proper cleaning for a while longer. However, it's also possible they will ruin the lens. Consider that the worst thing to do to a precision optical surface is to wipe it with a dry cloth as this is likely to scratch the surface as it rubs the dust over it. To the lens, a speck of dust is like a boulder. Once the lens is scratched, replacement of the entire optical pickup is the only remedy. And, since there are absolutely no sorts of standards for these things, it is possible for a really poorly designed cleaning disc to damage the lens even if the dust itself is non-abrasive. In addition, if the cleaning disc doesn't look like a CD to the optical pickup or disc-in sensor, the lens it may not even spin. So, the drawer closes, the drawer opens, and NOTHING has been accomplished! (But at least no damage will be done.) As if this isn't enough, NEVER put one into a high-X CDROM (DVD player or DVDROM drive). The high speed rotation may cause the cleaning disc and/or player/drive to self destruct. And, don't try a cleaning disc on an automotive CD player that sucks in the disk - it will get stuck.

Dec 26, 2005 | GE Slim Spacemaker 7-5295 CD Shelf System

1 Answer

Pioneer PD-F906 Laser carriage at spindle/extended


It might be an older CD player that can't read computer-made discs, or it could be a disc incapability... If you sure that the system supports the disc's format.. And it won't play other discs... try to clean the CD lens. CD lens cleaning discs: Every CD, stereo equipment, department, discount, store - and even sidewalk venders - carries CD lens cleaning discs. Are they of any value? Can they cause damage? I generally don't consider CD lens cleaning discs to be of much value for preventive maintenance since they may just move the crud around. However, for pure non-greasy dust (no tobacco smoke and no cooking grease), they may not hurt and could even do a good enough job to put off a proper cleaning for a while longer. However, it's also possible they will ruin the lens. Consider that the worst thing to do to a precision optical surface is to wipe it with a dry cloth as this is likely to scratch the surface as it rubs the dust over it. To the lens, a speck of dust is like a boulder. Once the lens is scratched, replacement of the entire optical pickup is the only remedy. And, since there are absolutely no sorts of standards for these things, it is possible for a really poorly designed cleaning disc to damage the lens even if the dust itself is non-abrasive. In addition, if the cleaning disc doesn't look like a CD to the optical pickup or disc-in sensor, the lens it may not even spin. So, the drawer closes, the drawer opens, and NOTHING has been accomplished! (But at least no damage will be done.) As if this isn't enough, NEVER put one into a high-X CDROM (DVD player or DVDROM drive). The high speed rotation may cause the cleaning disc and/or player/drive to self destruct. And, don't try a cleaning disc on an automotive CD player that sucks in the disk - it will get stuck.

Dec 26, 2005 | Pioneer PD-F906 100-Disc CD Changer

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