I am sorry if this question is not in the right place. I am now in urgent state of having to figure out how to interfere the writing process of a CD-Writer or DVD writer.
As you known, the CD-Writer always write EFM signal onto the CD-data layer.
The question is how to interfere this process by our own signals.
Our job is to write a special Hologram Pattern on the CD surface. That pattern cannot be done by normal burning process of EFM singals. Hence we need to interfere this process.
Some more question:
There are so many things should be considered when we are on the way finding how to solve the problem as mentioned above.
- How to start the burning process
- Do we need to control Cd-motor speed, the Pickup Head moto speed or we can let the CD-driver control itself if it possible, how?
- How to find the starting/ending point of the CD-pregrove spiral
Thank you very much in advance …
With best regards,
PS: if you have any document pls inform me by hoaitq at icu.ac.kr