[9fans] dvd writing

[9fans] dvd writing

[geoff]

Has anybody managed to write a DVD+R or +RW using Plan 9?
And if so, how?  Neither scuzz nor cdfs seems to be able
to write +RW discs on my machine.  I had some luck writing
a +R disc with my modified scuzz, but there were complications.

Re: [9fans] dvd writing

[Lucio De Re]

> Has anybody managed to write a DVD+R or +RW using Plan 9?
> And if so, how?  Neither scuzz nor cdfs seems to be able
> to write +RW discs on my machine.  I had some luck writing
> a +R disc with my modified scuzz, but there were complications.

I had to perform all sorts of songs and dances to get CDs written on a
do-everything DVD-Recorder.  The device reset the speed on medium
insertion, but that wasn't getting picked up.  I then had to adjust
the (write) speed to match the medium _and_ could never be sure
whether DMA was meant to be on or not, as I have what seems to be a
flaky IDE device or two on that particular host.

Once I got the knack of checking and setting things, I stopped getting
errors part way through writing a track.  As for writing DVDs, I don't
have enough cache space anywhere, even on the network, to hold the
capacity, so I've never had occasion to try.  I'm sure that at the
right speed, cdfs will do the right thing.  In fact, even over the
network, I've been able to create viable CDs, as long as I don't try
to write too fast to them.

++L

Re: [9fans] dvd writing

[Christopher Nielsen]

from my experience cdfs doesn't handle writing DVDs. before
writing DVDs can be generally useful, someone needs to write
UDF support. i was re-writing cdfs awhile back to support
more features for mastering CDs, and the intent was to add
UDF and DVD support. life threw me some curve balls before i
could finish it, though.

if no one beats me to it, i intend to spend some time on it
when i have the time, but i am in the middle of moving and
my dev environment isn't functional.

On Tue, Dec 06, 2005 at 01:54:26AM -0800, geoff@collyer.net wrote:
> Has anybody managed to write a DVD+R or +RW using Plan 9?
> And if so, how?  Neither scuzz nor cdfs seems to be able
> to write +RW discs on my machine.  I had some luck writing
> a +R disc with my modified scuzz, but there were complications.

-- 
Christopher Nielsen
"They who can give up essential liberty for temporary
safety, deserve neither liberty nor safety." --Benjamin Franklin

[9fans] dvd writing

[pac7]

Sorry for inconvenience, this posting belongs primarily to Geoff
Collyer, whose mailserver unfortunately bounces back my messages.
Thanks, Peter.


From: Čejchan Petr GEO
Sent: Monday, January 02, 2006 2:25 PM
To: 'geoff@collyer.net'
Subject: dvd writing
Importance: High

Hello, Geoff!

First, PF 2006, best wishes to the new year.
Second, you wrote you had some success writing DVD+R using
modified scuzz. Could you, please, be more verbose? I would like
to use DVR-R (or +R) to dump a single .tar file on each dics.
First I thought that I could just dd the file to /dev/sdD0 (where
my dvd drive is), but this apparently is not the way.

Thanks for any help,
best,

Peter.