Are you sure this isn't just a case of the app knowing it's been burned onto a recordable CD ? Originals a generally pressed onto CD's not burned and as such, the cd isn't marked as being recordable. Usually you need to run something like clonecd and turn on the "hide cdr media" option. This prevents the app from reading the disk info and discovering that it's on a recorable cd.

This is referred to as ATIP protection .

For example:

What is ATIP and how does it work as copy protection ?
Posted by DoMiN8ToR on Sunday, October 21 2001

Question answered by G@M3FR3@K

Every CD-R has important info on the disc itself which is called ATIP (Absolute Time In Pre-groove) or pre-groove for short. Without this data/info the CD-R cannot be used by a writer. The ATIP contains the following info:


The capacity of the CD-R

The manufacturer of the CD-R

The type of the CD-R (eg. Audio only)

Supported writing speeds

Absolute lead-in time

Last possible address where data can be written

etc...
Only a CD-Writer can read the ATIP (because like I said before this ATIP is only needed when writing a CD-R).

The ATIP protection is based on this fact: when the game starts it checks if there's ATIP info present: if so then it will presume it's a CD-R disc and will not play.

Another way around this is to run your copy in non CDRW drive as read only drives cannot generally read ATIP info !


I hope this helps. If I've misunderstood your question, then my apologies

Cheers


Star Buck