Ok. Here's the best way to identify the playing surface and non playing surface of a CD. Braille readers will be able to use their finger tips but for those who have sensitivity problems use your finger nail but very carefully. Probably the easiest way to do this, if you are doing it for the first time is to place the disc in the case. From the centre of the disc slowly run your finger nail towards the outer edge of the disc. About half an inch from the spindle hole you will find a deep groove, your finger nail will pick this up. This is the non playing surface. Now if you turn the disc up the other way and again slowly and gently run your finger nail from the centre towards the outer edge about half an inch from the centre you will find a ridge. Depending on the brand of the disc the ridge will vary in how pronounced it is but it is there and It is a ridge. This is the playing surface. Once you get used to feeling it then you will know at a very brief touch which side is which. Walter.
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