Re: [ARSCLIST] CDR Serial Number

[Jerome Hartke <jhartke@xxxxxxxxxxxx>]

Many, but not all, CD and DVD recordable and rewritable discs contain a lot
code in the clear inner ring. This is determined by the manufacturer for
traceability purposes. There is no standard for this code. It is possible,
but not probable, that multiple discs would have the same lot code.

Jerry
Media Sciences, Inc.

> -----Original Message-----
> From: Association for Recorded Sound Discussion List
> [mailto:ARSCLIST@xxxxxxx] On Behalf Of Mwcpc6@xxxxxxx
> Sent: Tuesday, January 03, 2006 8:18 PM
> To: ARSCLIST@xxxxxxxxxxxxxxxx
> Subject: Re: [ARSCLIST] CDR Serial Number
> 
> In a message dated 1/3/2006 10:08:12 AM Eastern Standard Time,
> fmartinelli@xxxxxx writes:
> There's an alternate way of reading the serial number on the Cd to
> squinting
> and holding it against the light?
> ***************
> http://www.kodak.com/cluster/global/en/service/faqs/faq1630.shtml
> 
> 
> Does each CD-R disc have a unique serial number that could be used with
> programming to prevent duplication?
> Conventional CD-R discs do not have unique serial numbers recorded on
> them.
> Some discs have unique identification numbers printed on them and/or
> barcoded
> on them. However, a standard reader or recorder cannot read these numbers
> and
> so they are not useful for copy protection.