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slackware

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RECOVERING SCRATCHES CD
« on: December 18, 2008, 11:24:08 PM »
Every user has had trouble with a scratched CD. In the case of data CDs (CD-ROM), the drive cannot properly read the CD, giving rise to reading errors. In the case of audio CDs, the CD skips when we play it.

The first thing to do when coming across a CD with a read error is to clean it, to check whether it the error is not being caused by a dirty surface. You can even wash the CD gently with a little detergent, using your fingers to clean it (avoid sponges, since they can scratch the CD). If the error persists, try reading or playing the CD on another drive. If another drive (or CD player, in the case of audio CDs) gives the same result (read error or skipping, in the case of audio CDs), it will mean that the CD is scratched.

Looking against the light, the recording surface (the flip side of the label) of a CD with this kind of trouble will allow you to easily see one or more existing scratches. A CD's data is recorded on a metal layer inside it, a silvered layer on commercial CDs, which is usually golden on CD-Rs. This metal layer is inset in a transparent plastic covering (polycarbonate), used to protect the CD's metal layer and allow printing a label on the side not used for reading.

A CD-ROM drive or CD player utilizes a laser beam to read the metal layer. This laser beam crosses the plastic layer and reads the metal layer. If the plastic layer is scratched, the beam will be unable to pass through it, resulting in a read error or skipping the music. In other words, the data to be read are still in the CD, the trouble lies in the layer of plastic.

As the CD's contents are preserved, a scratched CD can be recovered by polishing its plastic surface. If, after carrying out the above cleansing, the CD persists in giving reading errors, just polish the CD with toothpaste. That's right, toothpaste. It works wonders, and you won't spend a fortune buying professional cleaning kits. Polish the scratches with a cotton swab, rubbing gently the paste-imbued swab over the scratches until they disappear or until you notice that you have removed them as far as possible. Sometimes the paste may cause new scratching, but it will be merely superficial and easily removed. After clearing the scratches, wash the CD in water.

If there are still scratches that the toothpaste has not managed to removed, use a metal polish (Brasso) in the same way as described above. Finally, rub Vaseline on the CD, very gently (do not press hard), from moving out from the centre to the rim.

The last step will be testing the CD. If it starts working properly, great. If not, repeat the above procedure, looking for the scratch that is causing the error and concentrating your polishing efforts on it.

Remember: Do not clean your CD on circular way!

source: http://www.migforces.com/trouble-shooting-f16/recovering-scratches-cd-t2912.htm?sid=3b84a98bed7aa7326bf61170afa48d50

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ms da binsi

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Re: RECOVERING SCRATCHES CD
« Reply #1 on: December 18, 2008, 11:26:04 PM »
hala toothpast!!! hahahhaha

OMG! thanks for the tip! kay naa jud koy CDs nga bisan unsaon ug hugas di jud magamit na!

ill try COLGATE diay!
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Re: RECOVERING SCRATCHES CD
« Reply #2 on: December 18, 2008, 11:30:45 PM »
ayo, palita ko ug colgate kanang closeup.

let me give it a try.
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ms da binsi

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Re: RECOVERING SCRATCHES CD
« Reply #3 on: December 18, 2008, 11:34:17 PM »
bwahahaehhehehe!

tinuod jud na! dayun Ray kadto pa jud gagmay nga package!

kanumdom pa ka ana? sus tawon sad diay ta oi!

mao ra baja na akong ma afford sa una!

usahay ug mahutdan, asin!

tawon sad nako diay oi!

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Re: RECOVERING SCRATCHES CD
« Reply #4 on: December 19, 2008, 12:55:25 AM »
ing ana jud na life ms da bins. mas worst pa gani ang naagian sa atong mga parents sa una kay wala jud na siguro sa una. nagka modern ang world nagka hi-tech sad ang tawo. dili nalang ta magwonder pohon nga atong mga anak super techy compared sa atoa. biyaan nalang ta sa panahon.


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Re: RECOVERING SCRATCHES CD
« Reply #5 on: December 19, 2008, 07:46:29 AM »
bitaw Ray but you know what? im proud of my past... kay wa na jud makaagi sa atong naagian... and it has too many stories to tell...hangtud gud karon di ko mahutdan ug story sa kapobrehon namo sa una...we were not really that poor but too poor enough compared sa akong kinabuhi karon...

viva la vida loca! (loka-loka)! hahahaha

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Re: RECOVERING SCRATCHES CD
« Reply #6 on: December 19, 2008, 11:22:56 PM »
ako im forgetting the past. i let it remain in the past. ang akong gihunahuna karon ang ugma sa akong mga anak.

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Re: RECOVERING SCRATCHES CD
« Reply #7 on: December 20, 2008, 12:01:39 AM »
past is past Ray and you can never go forward to tha past...

it is a good lesson to learn though...


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Re: RECOVERING SCRATCHES CD
« Reply #8 on: December 20, 2008, 02:53:17 AM »
This is a great info. I always clean CDs in circular way, which is wrong. Thanks Slackware.
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