How to Recover MOST of Scratched CD Data Discs

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…

How Does Electricity Produce Heat and Light?

A good conductor such as copper has only very low electrical resistance. It does not get very hot when electricity flows through it, making copper suitable for household wiring.

Other metals such as iron and nickel have much greater resistance to the passage of electricity, so they become hot. A very thin wire has more resistance than a thik one, and a long wire has more resistance than a short wire. In an electric fire, coils of thin, high-resistance wire glow and produce heat when an electrical current passes through them.

In a light bulb, coils of an extremely thin conductor ensures that heat cannot be radiated away quickly enough and some of the energy is converted to light.

Electrical currents normally flow in one direction through an electrical conductor, This kind of electricity, which is produced by batteries for example, is called direct current. When the electrical current is made to reverse its direction rapidly, it is known as alternating current. This kind of electrical current is used in domestic wiring, and it usually switches direction and and back again about 50 t 60 times per second. This is the cause of the hum that you can sometimes hear near electrical equipment such as fluorescent lights.

How Do Batteries Work?

Batteries produce electricity by means of chemical action. A battery contains two different conductors, or electrodes. Usually, one of these is the metal case of the battery. The electrodes are separated by a conducting liquid or paste, called electrolyte. The substances in the battery react chemically with each other to produce an electrical current. As a result of chemical activity, a positive charge builds up at one electrode, and this can flow through a conductor such as a wire to the other (negative) electrode. Eventually the chemical energy runs out and the battery becomes exhausted.

CANON DIGITAL CAMERA: EXPRESS, SHOOT AND SHARE

Canon is well known across the country as an imaging equipment and information systems. Their many products include copiers, printers, lenses, camcorders, semiconductors among others, and of course Canon digital cameras.

The latest high end canon digital camera is the PowerShot S2 IS. This is a 5.0 mega pixel Canon digital camera that features a 12x optical zoom and a 4x digital zoom. This baby is furnished with Optical Image Stabilizer (that is what the IS in S2 IS stands for) that eliminates camera shakes for people who have shaky hands or for taking camera shots. The UD lens found in this canon digital camera provide amazing color accuracy throughout the whole zoom area.

As with many digital cameras nowadays, this certain canon digital camera can record moving pictures. Now with another first, the S2 allows you to record moving pictures, and there no use for missing a perfect image incorporated with that moving picture. With the Movie Snap feature, just snap away when you see that perfect image, and it will be saved in your canon digital camera along with the recorded video.

This canon digital camera is also equipped with the DIGIC II Image processor that is designed to increase processing speed and image quality. It instantly says that with the DIGIC II, your canon digital camera has faster start-up time, playback and auto focus while giving your images the absolute brilliance.

The S2 also support USB 2.0 Hi-speed standard, so you will always have the easiest time transferring your files to and from your computer. With the USB 2.0, you can take advantage of your super hi-speed SD card.

This canon digital camera is also supplied with a 1.8 inch LCD power saving and fold out screen that?s 115,000 pixel resolution. S2 shoots at 30 frames per second; this shooting rate can be reduced when taking pictures in night display, to give you the brightness that you need when taking pictures.

On the other hand, the latest point and shoot canon digital camera is the PowerShot SD500 and the PowerShot SD400.

The SD500 is the first 7.1 mega pixel canon digital camera that gives amazing images and absolutely to die for details. It has a 3x optical zoom that enables close up shooting with a 37-111mm equivalent with a 35mm film camera. This is one of the new perpetual curve design for a canon digital camera that fits the hands perfectly.

Sporting a very slim design, you would marvel at its 2.0 inch LCD that gives easier frame and play back use.

This baby is also equipped with the same DIGIC II Image Processor found in canon digital cameras that gives you amazing features. Also USB 2.0 compatible and works with the same high-speed SD card.

Even better than most digital cameras out there, this gadget can shoot moving images to up to 60 frames per second- perfect for moving objects (especially in sports) and a 30 frames per second for shooting still images. Furnished with scene modes like portrait (blurs the background and focuses on your subject), foliage (perfect for foliage, greenery or blossoms), beach (sunny shots without the dark faces), underwater (reduced background scatter. Tip: you can always buy waterproof case for shooting underwater images), fireworks, night snapshot, kids and pets, indoor, snow and digital macro (larger than life images).

This canon digital camera even enables you to customize and correct as you shoot. With modes like lightening skin tones, positive film, darker skin tones and others, you can never go wrong with using a canon digital camera.

These are just some of the many features of the SD500. There are more to the SD500 that has yet to be discussed. Check canon?s website at www.usa.canon.com <http://www.usa.canon.com> for a full profile of the SD500 and to other latest releases and products.