Re: [Cdw-devel] Bugs prior to 0.5 release

[<cdw...@li...>]

Dnia 14-07-2010 o godz. 23:56 cdw...@li... napisał(a):
> 13) When selecting "Write Files to Disc" menu option (not write
> image to disc), I get the following menu with the latest CVS:
> 
> You are writing to DVD disc (More specifically, DVD+RW media)
> Writing speed: 2v
> 
> Session writing mode:
>   Append data, don't close disc
>   Start new, appendable disc (appendable is showing as misspelled within vi
>   here -- no such word ;-)
Ach, I knew it :) Emacs highights it as well. Do you know which word I 
can use?

> 
> Disc writing mode:
>   Unspecified (no other options given)
> 
> 
> So, I question, isn't there a "closed/make non-appendable" write option
> for DVD+RW
> media?
>From my experience with growisofs and DVD+RW I can say that you can't 
close DVD+RW. You just can't :) Maybe I'm wrong, but cdw is consistent 
with my (possibly incorrect) experiences.

> [...]
> Unspecified is the only write mode?
Yes. I think that since you can't close DVD+RW, there is no point in 
using DAO with growisofs. growisofs doesn't accept explicit TAO, so 
there is no TAO in write wizard either.


> This media looks like 2.4 write capable, so I know the speed is likely
> correct.
I know that some media have 2.4 writing speeds, but cdw can't recognize 
writing speeds with fractional parts :(

 
> So far, I have written 2.6M to a 4.7G DVD+RW media in both "write file"
> and
> "write image" modes.  Granted, far from stress testing this program, but
> at
> least I know CDW executes without errors. ;-)  ... some quirks -- like the
> eject, insert and then eject -- but I think that is due to CDW thinking
> it has
> to verify the write, but then realizes it can't verify (because it's not
> hooked
> in yet).
No, it is rather due to the fact that when burning with cdrecord (and 
with wodim in particular) sometimes you have to reload tray so that 
cdrecord can correctly recognize disc state. If I remember correctly 
(without looking into source code) this reloading is implemented for 
burning in general, without making distinction for growisofs.

Kind regards,
Kamil