Erreur lors de compilation DVDauthorGUI

Bonjour,

Voici mon erreur sur DVDauthorGui :

There was an error in the authoring process. It appears that something is wrong with the muliplexed VOB files. If you are using previously multiplexed mpeg/vob files, try demultiplexing. Also, keep in mind that every title under a titleset must have the same properties (fps, resolution, etc). Please review the log for more detailed information.

QQUN peut il m'aider a resoudre on probleme svp