Now that I've had some time to think about it the article at 6moons went on to state that the pits in the CD are read by the laser similar to a needle tracking a groove on a record. Its still not a 'digital' read as the laser never really reads the same pits in the same manner, or something like that. There is still some guess work done before it goes onto the DAC. I'll try to find the article and post it here.
All the best,
Nonoise
All the best,
Nonoise