CDRFAQ question clarification : [7-16] Can you tell pressed CDs andsilver CD-Rs apart

[=?windows-1252?Q?David_Bala=9Eic?=]

http://www.cdrfaq.org/faq07.html#S7-16

It says :

Subject: [7-16] Can you tell pressed CDs and silver CD-Rs apart?
(2000/03/12)

The easiest way is to drag something sharp across the top and watch what
happens. If you'd like to be able to use the disc afterward, there are
some non-destructive ways too.

-- end quote --

But it does not say how to interpret the results. I scratched the CD,
now what ? How does a pressed CD look ? And CD-R ?

Regards,
David

[Mike Richter]

David Balažic wrote: http://www.cdrfaq.org/faq07.html#S7-16 It says : Subject: [7-16] Can you tell pressed CDs and silver CD-Rs apart? (2000/03/12) The easiest way is to drag something sharp across the top and watch what happens. If you'd like to be able to use the disc afterward, there are some non-destructive ways too. -- end quote -- But it does not say how to interpret the results. I scratched the CD, now what ? How does a pressed CD look ? And CD-R ? Regards, David

I'm afraid the FAQ had its 'tongue' in its 'cheek'.

The easy way to tell is to drop the disc into a writer and to attempt to
read the ATIP. (Commands for that are usually called Disc Information or
something of the sort, depending on your mastering sofware.) With a
recordable disc - even after recording - there is information on the
capacity, and rated speeds (optional). A pressed disc has no ATIP.
Information on space used and on closure is in the TOC, of course.

Mike
--
mrichter@cpl.net
http://www.mrichter.com/