Internal Muxer Error

Compiling VTS#1 (Track 1)...
Dear Friends, after a lot time I can't burn a good DVD with DVD Studio Pro4 -
I tryed with Compressor File MPG3.mv2 and movie QTM, both sound .aiff and AC3 - never can do it.. please, anybody could help me?
thank a lot / rolo (if could you send an e.mail explaining?) two thank!


Muxing VTS_01_1.VOB
Done.
Linking VMG...
Linking VTS#1...
Writing VTS#1...
Writing VMG...
Writing Layout Info...
Creating Jacket Picture Folder...
Muxing Small Jacket Picture...
Muxing Medium Jacket Picture...
Internal Muxer Error

Build cancelled
Formatting finished.
Building was not successful. See log.

MacPro -8 núcleos - 2.6 GHz - OSX Lion - FCP7 -buenos aires -

The last entry into the Log was Muxing medium jacket picture - then - muxing error.

I would surmize that the medium jacket picture is the culprit. I have never used Jacket Pictures before so that workflow is beyond me.

Why does it need small-medium and large jacket pics?

thank john... I don't kwow what @#$%& it's "jacket Picture folder", I checked 3 pics (import jpg) with a mask, but th's not the problemm. I can't understand "where is jacket folder?, and jacket picture?
Sincerly.. i am spent a lot time without find error. Thank if you give me another way.
Rolo

MacPro -8 núcleos - 2.6 GHz - OSX Lion - FCP7 -buenos aires -