growisofs problem

[Marc Fonvieille]

On Fri, May 21, 2004 at 05:47:58PM -0400, Jason Andresen wrote:
> In 5.2.1-RELEASE, I get the following message when I attempt to 
> overwrite a DVD-RW that already contains some data:
> 
> WARNING: /dev/cd2 already carries isofs!
> About to execute 'mkisofs -R -J -f /tmp/burndvd/ | builtin_dd 
> of=/dev/pass4 obs=32k seek=0'
> mkisofs: Warning: -follow-links does not always work correctly; be careful.
> /dev/pass4: "Current Write Speed" is 2.0x1385KBps.
> :-[ WRITE at LBA=0h failed with SK=5h/ASC=21h/ACQ=02h]: Invalid argument
> :-( attempt to re-run with -dvd-compat -dvd-compat to engage DAO or 
> apply full blanking procedure
> :-( write failed: Invalid argument
> 
> Is there a way to burn on DVD-RWs without going through the extremely 
> long blanking procedure.  I've found that if I go and reformat the disc 
> it works, but it takes _forever_.
>

Your DVD-RW is in sequential mode, you should put it in restricted
overwrite format which allow you to use it like a DVD+RW.

For more informations read:
12.6.6 Using a DVD-RW
in
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/creating-dvds.html

Marc