As I realised there wasn’t a perfect program to burn CD+G cuesheets
(case here), I discovered a couple of faults while burning audio/data
cuesheets too, but this time the mistakes come in hardware’s design.
I performed the tests with four Plextor drives and a couple of Pioneers,
they consist in imaging audio/data subchannels of a pressed disc and doing
an img+cue pair image of it aswell, then this last image is written in CD-RW
and finally a new subchannel extraction is made from this rewritable disc.
Results from comparation between first and second subchannel extractions
and a quick first pause and leadout comparation in CDTool reveal the next:
-Plextor PlexWriter Premium I and II:
Sony style start, incomplete leadout start flag (150th subcode block with
P = FFs is missing), Sony style pauses preceeded by a P = FFs subcode
block when length is equal or higher than 2 s (when gap is present).
-Plextor PX-716A and PX-760A:
Same as Premiums, but aditionally all P subcoding gets shifted one
block back (it’s in phase with Q subcoding, which is against the
specification since it must be delayed by one subcoding block).
Sony pauses and… not a single subcoding block with P information!
Sony pauses and just like the Plextor DVD burners, all P activity gets
shifted one block back.