Stereo vs Monoral

I just came from the Apple Store and their technical folks informed me that iMOVIE and iDVD programs are dual channel monoral audio and not stereo...

sorry to say: they are fired! 😉

yes, stereo is two monochannels... but what does it mean ..dual channel monoral audio and not stereo...?? nonsense, because:

iM (and iDVD) handles stereo only (as "one" track); e.g.: we do read posts here, people have for some reason audiochanel1 only => stereo left only... no way in iM (or IDVD) to correct that; therefore, iLife6 allows the "swapping" of files iMGarageband, a designated audio app (which allows to show stereo as two tracks)

iM includes the stereo signal of the camera-import plus two extra tracks (both stereo); using QTpro, you can see, how an iM's dv-stream contains 6 audio-tracks. but as said, iApps = stereo only.....

and: you can not "select" audio tracks in IDVD, it is a consumer app...

just some nomenclatura... I inserted my iDVD ... iDVD is an app, you inserted a DVD, a videoDVD, a disk... ;-))

back-to-topic:
there's something terrible wrong!!

using the recommended workflow from iM to iDVD, should make ONLY hear your "mix", original+dubbings....!

quite all app; search in your library/preferences for 3 files:

com.apple.iMovie3.plist
com.apple.iMovie.plist
com.apple.iDVD.plist

drag'em all into trash, empty trash

that will "reset" the apps, no project gets harmed...
open your iM project, export again to iDVD, try a new burn....