[Dvdrtools-users] Re: DVD-R media speeds (Matthew Stephenson)

[wen-king]

How do you change the recording speed?  I am unable to do it
with dvdrecord.

>variety of different dvd drives - I use "find /mnt/dvd -type f -print0
>|xargs -0 md5sum" to do a recursive md5sum of all files on the disc.
>|md5sum will complain if it can't read a file.

I find it must faster if I open and read the device file directly.
On solaris, that would be something like /dev/dsk/c1t6d0s0.  Since
the iso file should still be around, after each burn I do something
like:

cmp /dev/dsk/c1t6d0s0 dvd_image_file.iso

Burn reliability is also very dependent on the drive itself.  I bought
two Pioneer A04 at the same time.  One of them never showed any
problems in a month of use, but the other could not successfully write
a single DVD-R.  This is with Verbatim media.  Teh faulty drive has no
problem with DVD-RW, CD-R, or CD-RW.  I am eager to try recording DVD
at 1X speed with it, but I don't know how.