That's very unusual. In all the years I have been using CDs I have never once had that experience. The only thing I can suggest is if you have that experience again is to find the side with the groove and that will be the non playing surface. The groove is necessary for the CD recorder or Drive to identify the type of disc and then to calibrate itself. The only other thing I can think of is that in spindle tubs of CDS there is often a dummy disc at either end to protect the real discs and maybe you are feeling that dummy. Walter
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Kenneth Suratt Sent: 11 September 2007 12:28 To: PC Audio Discussion List Subject: Re: Identifying the playing surface and non playing surface of a CD some times I gat a cd with a raise circle on both sides. How can I tell the different? ----- Original Message ----- From: "Walter Ramage" <[EMAIL PROTECTED]> To: "PC Audio Discussion List" <pc-audio@pc-audio.org> Sent: Tuesday, September 11, 2007 4:06 AM Subject: Identifying the playing surface and non playing surface of a CD > 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. > > > > > > Audio List Help, Guidelines, Archives and more... > http://www.pc-audio.org > > To unsubscribe from this list, send a blank email to: > [EMAIL PROTECTED] > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com Audio List Help, Guidelines, Archives and more... http://www.pc-audio.org To unsubscribe from this list, send a blank email to: [EMAIL PROTECTED] Audio List Help, Guidelines, Archives and more... http://www.pc-audio.org To unsubscribe from this list, send a blank email to: [EMAIL PROTECTED]
