How to add an audio title

[wincent]

I have an already authored DVD consisting of a video title on my hard disk (.IFO and .VOB files in VIDEO_TS folder).
I'd like to add an audio title to this DVD. I can create an audio title and move the resulting AUDIO_TS folder in the same folder as the existing VIDEO_TS folder. Will it work ? And what about editing the menu of the dvd (audio title needs to be in the menu) ?
Thanks for your advice.

[miztadux]

The AUDIO_TS folder is only used by audio dvds.
You'll have to modify you're existing DVD (files in VIDEO_TS)

I'm not sure what you mean by "audio title":
- If you want to add an "audio only" title to the dvd:
* true "audio only" is not possible, you'll have to author a video title with a somehow blank video track
* to do this just mux (with ifoedit or muxman...) a blank video with your audio
* then add the new title to your dvd (using pgcedit for example)
- If you want to add an audio track to an existing audio title:
* demux the title (for example with vobedit or pgcdemux)
* remux the title + your new audio track (ifoedit or muxman)
* replace the video title in the dvd with your newly muxed one (pgcedit or vobblanker)

Anyway if you want to be able to select the new track from the dvd menu it's tricky, you'd better start reading dvd menu authoring/editing guides (with pgcedit, too).
Basically you can add a button:
- just with pgcedit by using custom color schemes (without altering the background image and mask, just by using a color for the selected background), but it's VERY limited
- by re-authoring (for example in scenarist) the menu with modified background image + mask that includes the new button, but its VERY tedious
Alternative ways to acces your new title (without the menu) are:
- by using the player's navigation buttons ("jump to title" for a new title, "select audio" for a new audio track)
- by using the same method as the "DVDShrink Navigation Button" macro, which jumps from a title to the next when you hit the "title menu" button...

In a nutshell, if you don't know where to start, I'll advise you to study & practice pgcedit guides

[wincent]

Thank you for your help miztadux.
In fact, I want to add an audio_ts folder which be playable by a DVD audio player like the video_ts folder already existing is played by a DVD video player. Is it possible to have a DVD both audio and video ?
I think i am going to get rid of the idea of adding buttons related to the DVD audio content in the menu of the DVD video.