sorry to post about this issue again.
I have read hours in this forum with many true answers. Still I am as clever as before. As I have scrapped now 10 or more disks - I need to ask:
Some users state, that each learning burn increases the quality scan.
But how can this be, when SB (Philips) probes each single disk at start and end.
Averaging something in the EEProm would jeopardize the individual probing.
I can imagine that the first disc is learned and the parameter used for unknown media (firmware), when SB is switched off. I see no clear documentation on this issue.
I experienced, that 2 disks are ok, another one scrap and after that on acceptable level again. I hoped to use off my MCC 004 well with SB, but even with burn speed 4x I now and then see somtimes bad surprises.
I scan with Nec4550 - the Philips 1660 currently provides no PIE.