I am very curious about what keeps the recording laser locked onto the right position.
I know that there is a very shallow groove on every blank cdr, called the pregroove, and in this pregroove there is a 22khz signal called the ATIP wobble.
Now i’m wandering what keeps the recording laser in its correct position, is it the pregroove itself, which stops the laser beam loosing tracking, or is it the signal inside the pregroove which controls where a laser burns to?
lets pretend I made a cdr drive modification which would allow you to make your own ATIP signal and inject it into the drive, in other words ignore the ATIP signal that is already on the blank cdr and use your own custom ATIP signal instead. Would I then be able to record physicly anywhere onto the disc, even outside the pregroove?
Or would that just mean that I can burn anywhere onto the disc, as long as it’s still in the pregroove?