Our test unit came well packaged for us. The content is clearly arranged and the  manual is very well described.

The device looks like a CD player, press the "Open" button will open the device and we see the already loaded two grinding papers (red), then we will have a defective CD, the unit close yet to the power supply and Press "Power ".

The two cutting attachments to edit the bottom of the CD and the unit works to himself. The grinding process ends after a time of their own. We open the unit again and remove the disc, a fine dust is on the CD and in fact, some cracks appear to have been already removed, we remove the cutting attachments and put the repair tips (yellow) into the unit and provide the right repair attachment with the Repair fluid (2-3 drops).

Then we close the door and start the device again. After some time, the unit will automatically and we can look at the result. A beautiful polished CD we hold back in the hands. The deep scratches have become very light scratches.

Result: Test passed, CD ran perfectly again. In another CD with deeper scratches we had to repeat the process five times, but again, the CD was re-read correctly. In another recovery CD but failed our test model, the engine went through.

Well that can happen, yes, equipment has been replaced by a new one. But unfortunately this CD after 3-4 repairs, the same problem, the engine overheats and turns through.

Conclusion: A good approach, easy to use, if the device does the restore CD's also, but by the defects (two devices) are not recommended.

We will order a third and hold on the date.