The DDU1615 is quite a fast (48x) DVDROM/CDROM drive - I was worried it
might be a very slow drive.

I have an old DDU1613 (40x) - I installed in on an XP system and tested
it and it worked OK with CDplayer. The DDU1615 is the next generation
and I think should work as well.

What is the firmware rev in the DDU1615.  If you are not sure run
"cdda2wav -scanbus" in a command prompt window.  The 4 letter code
after the SONY name is the rev. I think it should be something like
FRS3 or GYS1 or GYS2.  If your PC is a Dell there are firmware updates
on the Dell site.


The "-S 4" makes the drive run at 4x speed.  To play a CD you only need
1x speed but to allow for buffering I chose 4x.  I found if the drive
ran at full aspeed (e.g. 40x 48x) - it would be reading ahead and if
the user skipped tracks backwards - the drive had to slow down from a
high speed, reposition and re-start.  I found using 4x - skipping track
had less delay. Also I couldn't get a Sony DVD-RW drive to work properly
(same symptoms as you describe) until the speed was lowered.


-- 
bpa
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