MF Digital DIRECTOR CD/DVD Combo Series (Rev: 08/01/02) - Manual (Page 101)

DIRECTOR Series Operator’s Guide Document Revision: 0802
Page 100
Appendix C: Implementing Copy Protection
Copy protection is a feature to hinder unauthorized copying that can be
optionally written into data CDs created (not duplicated) with the
DIRECTOR. This offers a basic level of defense against copying attempts
by inserting and writing invalid (corrupt) blocks into the data area of the
CD-ROM.
The DIRECTOR’s copy protection function is designed to obstruct
commercial duplication equipment and consumer software that copies
discs at the block-level. It will not, however, prevent discs from being re-
authored one file at a time using a CD-R/RW recorder and a pre-
mastering program (such as Roxio Easy CD Creator and Toast, CeQuadrat
WinOnCD, Ahead Nero, NTI CD-Maker, and others). To prevent this from
happening the level of protection can be increased by writing your
application to check the CD for the presence of specific corrupted files
before it will function.
Note: Copy protected discs cannot be duplicated by the DIRECTOR.
It is also important to remember that copy protected discs
may also be mistakenly identified by industrial mastering
systems as containing errors and therefore should not be
used as a master disc for mass replication purposes.
Copy Protection Defect Files
The DIRECTOR adds copy protection to CDs it creates by employing a user
created defect file (saved with a “DEF” extension) to define how and where
the necessary invalid blocks will be written on the disc. The two types of
defect schemes offered by the DIRECTOR (Type 1 and 2), as well as their
related defect file examples, are presented below. Use a text editor to create
and save your defect file, and enter the name of the defect file into the COPY
PROTECTION FILE field in the Job tab when specifying the elements of
your disc for production.