On Wed, 23 Jul 2008 16:11:42 +0200
Jörn Nettingsmeier <nettings(a)folkwang-hochschule.de> wrote:
  hi everyone!
 for the first time ever, i have to prepare a cd-r master that will go
 into production without verification by the plant (yeah, i know, but
 my client got a *really* cheap deal ;)
 so i will have to make sure the data is ok and the block error rate
 is low.
 * how do i measure BLER on CD-Rs with free software tools?
 * how on earth can the same content burned via cdrdao to a CD-R on a
 cdrw drive (Plextor) and a dvdrw drive (LG) differ in several hundred
 thousand bytes when read back in with cdparanoia?
 both drives seem ok, i frequently use them to burn data cds and dvds
 which perform ok.
 any hints welcome, tia,
 jörn 
Hi,
I know that there are some differenes with drives, and stuff like r/w
offsets and so on, but that sounds like a huge difference to me.
I don't know much about that stuff, but I know where to find
knowledgeable people.
I'd give the 
hydrogenaudio.org forums a shot. If the guys there can't
answer your questions, I don't know who can.
Note that the forums focus is not on free software but on audio codecs,
cd ripping and foobar2k. I hope that they can help you anyway.
Oh, and if you find something interesting, please consider sharing it
with us.
Best Regards,
        Philipp