[quote=eric93se;2107910]Well I give a stab at the first. To start the burning process tell the drive to write a small image file of data, after the drive does its calibration is when you would interupt that bogus data and insert your EFM signal, via an “analog switch”. You can use any burning software like Nero to tell the drive to burn the image file.
So whats this project for? Senior Eng project?[/quote]
Sorry, the Hologram image cannot be created by EFM signals, It should be done by PWM (pulse with modulation).
That’s why the author used the analog switch to switch between EFM and PWM signals.
Because the information in the paper is not clear enough for us to follow.
Now we are trying to find how to trigger the CD-Drive to start its automatic burning process. And we just simply replace the EFM signals by our PWM signals when we want.
Could you pls tell me how to do so?
are there any free source codes or document to guide ?
The aim of this project is for making any hologram patterns on the CD-R surface.
Thank you very much for your kind and quick responses.