DVD burning..

[Chuck Swiger]

Jeff Mitchell wrote:
[ ... ]
>     Installed the dvd tools to get growisofs since this seemed like the 
> main alternative to cdrecord. (burncd didn't seem to like to burn DVDs, 
> though I forget exactly its output.)
> 
>     growisofs seems to almost work, but breaks and is slow:
> 
>     growisofs -dvd-compat -speed=4 -Z /dev/cd0=buckdvd.iso
> 
>     That results in..
> 
> Executing 'builtin_dd if=buckdvd.iso of=/dev/pass0 obs=32k seek=0'
> /dev/pass0: "Current Write Speed" is 4.1x1385KBps.
>    1867776/2937458688 ( 0.1%) @0.4x, remaining 104:46
[ ... ]
>   16547840/2937458688 ( 0.6%) @0.0x, remaining 455:59
> :-[ WRITE at LBA=1f90h failed with SK=6h/ASC=29h/ACQ=00h]: Input/output error
> builtin_dd: 8080*2KB out @ average 0.1x1385KBps
> :-( write failed: Input/output error
> /dev/pass0: flushing cache
> :-[ FLUSH CACHE failed with SK=2h/ASC=04h/ACQ=01h]: Resource temporarily 
> unavailable
> :-[ SYNCHRONOUS FLUSH CACHE failed with SK=2h/ASC=04h/ACQ=01h]: Resource 
> temporarily unavailable
> 
>     So it would seem to take hours to burn a DVD, and tanks after a few 
> moments anyway.

Is "sysctl hw.ata.atapi_dma" set to 1?  It looks like your system isn't able to 
send enough data to the burner to run at 4x, perhaps try burning at 1x speed 
and see whether that is more reliable.  (Often that works better with 
low-quality DVD-R media, anyway...)

You might want to double check your ATA connections, is the burner on its own 
channel as the primary master, by preference...?

-- 
-Chuck