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
> 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
> :-[ 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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