How to find out how well a CD player reads data?
Testing for data loss is normally a complex and time-consuming procedure that requires technical background and expensive equipment to perform. Our product, the CD-CHECK compact disc, is quick and easy to use. For the first time, it allows evaluation of the CD player’s “error correction headroom” (i.e. player’s ability to correct data errors) and “tracking” (i.e. player’s ability to stay on track despite of disc surface or other errors). Similar products were so far available only to professionals at the cost of $100 to $300 US and required additional test equipment. Unlike those products, CD-CHECK is available to general public as well as professionals and requires just ears and eyes as “instruments”. It is less expensive, quick and easy to use, and more effective in evaluation of tracking and data loss. Many people consider CD-CHECK the best product on the market. How does CD-CHECK work? CD-CHECK uses special digital signals in combination with disc error patterns arranged over five
