Hi all,

in the past time, the music mafia started to create more and more
coasters in CD shape.....

Although these disks look like a CD, they are no CDs. They are heavily 
violating the red book standard, they do not have the sound quality 
and durability of a real CD.

>From Philips Quality ensurance rules, they would have to be detroyed in
the faftory because they have a high number of uncorrectable read errors.

Because these disks are not red book compliant, it is pure luck if they
play in a red book compliant player like a Home Audio player, DVD player,
Car Hifi or PC player.

The typical method to create limited payability is based on defective multi
session TOC information. As most newer players support multi session, these
players are irritated by the broken TOC data. 

For about a year, Plxtor allows to switch their writers into a single session
only mode to avoid the problems described above. Unfortunately, Plextor
did not supply me with the needed programming information. Now thanks to a
user who did run a Logic Analyzer on the SCSI commands, I know how most of the
code works and a new program is ready for testing:

ftp://ftp.fokus.gmd.de/pub/unix/cdrecord/alpha/ms-i586-pc-linux-gnu

Call:

ms dev=b,t,l -ss

to switch to Single Session

ms dev=b,t,l -ms

to switch back to multi Session

J�rg

 EMail:[EMAIL PROTECTED] (home) J�rg Schilling D-13353 Berlin
       [EMAIL PROTECTED]               (uni)  If you don't have iso-8859-1
       [EMAIL PROTECTED]           (work) chars I am J"org Schilling
 URL:  http://www.fokus.gmd.de/usr/schilling   ftp://ftp.fokus.gmd.de/pub/unix


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