I have been running a series of movies with slide shows at the end. All seems well in iMovie 5 but when going to iDVD 5 and doing the burn, it encodes assets, renders movie and audio. Almost immediately after it goes in to burn mode you hear the DVD spin up, slowdown, then stop. Error message appears saying "Burnung finished. Errors were found during process. I click the disclosure arrow and get the error code # -536870198 - Multiplexer error. Problem during Multiplex/Burning. Anyone have an idea what that code means and how to fix it?
I have been suffering like most on this discussion with multiplexing errors. The only thing I can add is something I haven't come across in reading thus far. System profiler says my superdrive supports DVD+R, but that type of media was the source of my problem. Interestingly, I burned 3 copies of a movie onto these type of discs, and that's when I began to get the multiplexor errors. I tried most everything in these discussions to no avail, and then decided to change the dvd media, just in case. I used Maxell DVD-R discs, and it finally worked.
My point is: even though my superdrive should be able to use DVD+R media, it didn't. If you're in a similar situation, switch to DVD-R and hopefully, this will save you time, money and headaches
Powermac G5 Dual 2.0 Mac OS X (10.4.4) 16xSuperdrive
A quick search in the discussions would yield that same information. You are right-multiplexing errors are definitely linked to the media. DVD-R (4x or slower) is the best way.