ERROR: -12004 FREAKING OUT, PLEASE HELP!

Do you have any incremented saves of the project, like MyProject01, MyProject02, etc.?

Do you have any disk or data backups of the project from before the time when you made the most recent changes?

About the only thing I can suggest is to:

1. Do a Revert to Original on all of your transcoded assets.

2. Do a Replace Asset operation on all of your assets that were already DVD-compliant when you imported them.

3. Save the project under a new name, and try building again.

-Jeff

The Focal Easy Guide to Adobe Encore DVD 2.0

I got a way to solve it!

I also used to get that -12004 error every time I tried to build the disc image in a certain Adobe Encore CS3 project.

My Encore project had 2 AVI files in just 1 timeline.
So, "AVI 1" was "Chapter 1" and "AVI 2" was "Chapter 2" in the timeline, however, Adobe Encore CS3 has crashed (Unknown error -12004)

The solution:
I created 2 Timelines:
"Timeline 1" with "AVI 1"
"Timeline 2" with "AVI 2"

"Timeline 1" -> "end action" = Timeline 2

Why did I need to separate in 2 timelines?
I really don't know ... I use to make projects with several files in a single timeline without problems, but this time it didn't work.

Hope this can help you,
Good luck!