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The Author/Blogger shall hold no liability for special, incidental, or consequential damages arising out of or resulting from the use/misuse of the information in this Blog. It is strictly mentioned that these are all for learning and awareness purpose. Most of the articles are collected from various sources and many of them are blogger's own which meant for helping people who are interested in security system or beginners help for security systems and various IT purposes. Some of the articles are solely intended for IT Professionals and systems administrators with experience servicing computer. It is not intended for home users, hackers, or computer thieves attempting to crack PC. Please do not attempt any of these procedures if you are unfamiliar with computer hardware, software and please use this information responsibly. Binod Narayan Sethi is not responsible for the use or misuse of these material, including loss of data, damage to hardware or personal injury. Information can help you to catch hackers and crackers and other cyber criminals. Information can help you to detect and manipulate the evil motives of these anti social intellectual peoples. Good use of the information protect you from evils and misuse of the information make you evil/criminal. Author of this site will not be responsible for use of material for any illicit mean or illicit act done by anybody in any means.

Binod Narayan Sethi

Binod Narayan Sethi
Programming,Web Development & Graphic Designing are my Hobbies.

Thursday, June 10, 2010

How to recover MOST of scratched CD data discs

How to recover MOST of scratched CD data discs

I learn an old thecnique to how to recover damaged or scratched disks
with some lost of data. In this case i have one borrowed game - MAX PAYNE 2
with a chunck of 4 mb lost with a scratch in CD1 Install. Here we cover some
special thecniques of how to create a full working CD from the scratched one.

First some tools will be needed:

1. Alcohol 120%
2. UltraISO
3. Windows XP/2000 (not tested on 95/98/me)
3. Small piece of cotton
4. Dry cleaner paper
5. Finally, oil for cooking.

First step - preparing the CD

Get the cotton and drop some water, start cleaning vertically the surface of CD.
Do it 3 times and dry the water with a piece of dry cleaner paper. With a new piece
of cotton, drop some oil for cooking and start to wet the surface like you are
washing the CD with the oil. Dry carefully now. Some particles of oil will stay on the
microsurface of the scrath. It's okay. Seems the oil helps the laser of the CD/DVD driver
to read the surface again. Sure this will work with small unreadable scratchs - some hard
scratchs loose parts of the surface of the CD where we have data and it's lost forever.
But if it is loosed try anyway. Whith this tip 80% of the small scratched CD's coud be
recovered.

Second Step - testing the CD

With Alcohol 120% make an ISO - image making wizard - and lets see if the app can
read the loosed surface. In my case Alcohol 120% had recovered 60% of the data.
This is not enough. Have tryed other appz, they do not recover all the data. But the
CD/DVD driver laser CAN recover all data in this case. the data is still there, what we do?

third step - making the new CD

With the main copy system of windows explorer you can do it. Just create one folder
with the same name of the CD label for future burn reference, and copy the CD content
to the folder. When the CD copy process find the scratch, in majority of the cases, it's
slow down the reading and will recover ALL loosed data.If not, it just tell you there's
an unreadable sector. In this case your CD is lost. But it's not my case, finally
windows explorer got all the data from the scratch and made a copy in the folder.
with the ultraISO, wrote the original CD label, drop the content of the folder and
save as Iso. You can Test the new CD just mounting the iso in the Alcohol 120%. In my
case i did ISO of the two discs from MAX PAYNE 2 and tested installing from the mounted
ISO. Works like a charm. I got the 4 mb lost again. So, I have burned the CD and now i
have a working copy from the scratched one.

Sounds too bizzarre, but works. Course you can jump the cleaning process and try to copy
the content with Windows explorer. But in my case did not work without oil...

Binod Narayan Sethi

Binod Narayan Sethi
Binod Narayan Sethi

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