[linux-audio-user] creating audio-only dvds

[Lee Revell]

On Sat, 2004-10-23 at 18:34 +0200, derek holzer wrote:
> Hi all,
> 
> I have about a five and a half hour long concert I would like to burn as 
> audio on a DVD. I assumed that cdrdao or cdrecord would simply make an 
> "audio dvd" from the wav files, but that is not the case! My guess is 
> that there is something in the CDDA spec which prevents making an audio 
> CD over a certain length, because I get "illegal time code" errors from 
> cdrdao.
> 
> So, three questions:
> 
> 1) Is there a way to master an "audio dvd" without encoding to a closed 
> DVD-A format? By this I mean a DVD disc with uncompressed audio which 
> can be played back by most CD/DVD combo players.
> 
> 2) Failing this, I would be happy to simply burn a data DVD with the 
> tracks, but I want to make sure there are no gaps during playback 
> between the tracks [thus my idea to make a DAO "audio dvd"]. There are 7 
> tracks, each approx 50 min long, and each track continues directly into 
> the next. I do not have access to the original, continuous recording.

If DVD audio is anything like mastering audio CDs then you may need to 
make sure it's tracked on sector boundaries.  If the cuts do not overlap
this becomes much easier.
 
>  
> How could I get ecasound [or similar command line app] to append the 
> files together into one single, seamless file? 

Well if they are raw PCM:

cat t1.wav t2.wav t3.wav ... tN.wav > wholething.wav

Obviously this is easier if they do not overlap.

> Using a GUI app like 
> Rezound for this is just too cumbersome!

Um, if this operation is cumbersome then your GUI app is _horribly_
broken.  This should be as easy as "File -> Open Append" and select all
the files.  Even easier than catting them all together.

> 
> 3) I am not sure if have a single 4 Gb wav file would cause playback 
> problems on a reasonably fast computer with a DVD drive.

Should work.  Opening a 4GB file should not be harder than opening a 4MB
file.  The whole thing does not have to fit in memory at once.

>  My intuition 
> says yes, however. What other options for seamless playback of almost 6 
> hours of sound do I have?

MP3, Ogg, ...

Lee