DVD burning..

Greg 'groggy' Lehey grog at FreeBSD.org
Tue Aug 2 00:52:22 GMT 2005

On Monday,  1 August 2005 at 17:09:46 -0400, Jeff Mitchell wrote:
> 	Built an iso with mkisofs, and can burn it out with burncd to CDR
> no problem (if 700MB or less or so, of course.)
> 	For DVD, built a 2GB .iso using the same mkisofs command..
> 	mkisofs -o foo.iso -J -R filelist*
> 	'cdrecord' seems completely crippled...

Certainly I've had problems with it too.

> 	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.)

It's probably similar to what I describe at

> 	growisofs seems to almost work, but breaks and is slow:
> 	growisofs -dvd-compat -speed=4 -Z /dev/cd0=buckdvd.iso

Note that you don't need to specify the speed unless you want it to be
slower than the DVD specifies.  That might be useful.  Read on.

> 	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
>    7503872/2937458688 ( 0.3%) @1.2x, remaining 45:33
>    7503872/2937458688 ( 0.3%) @0.0x, remaining 71:35
> ...etc...
>   16547840/2937458688 ( 0.6%) @0.0x, remaining 435:23
>   16547840/2937458688 ( 0.6%) @0.0x, remaining 444:13
>   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.

This looks to me as if you're having problems with your blanks.  I've
seen something like this a couple of times, but in each case it
basically didn't get beyond the initial write of (in your case, anyway
1867776 bytes).  I'd *strongly* recommend getting at least some +/-RWs
to play around with.  At least like that you don't end up with a pile
of coasters, and it might help identify the issues.  All my burn
failures (about 40% of total!) have been with DVD+Rs, though
admittedly a cheap no-name brand bought in Taipei.  I've found that
they work OK if I burn them at speed=1; if I use the default speed of
4, they usually fail.

> Aside .. seems like a lot of tools depend on cdrecord to work, and
> it seems cdrecord with its key situation is volitile and requires
> userland knowledge to sort out.. so a bad situation :(

I've given up on cdrecord.

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