So I tested out my rebuilt blu-ray disc today - some of the timelines that were black before now play, and some of the timelines that played are now black!  So it must be something that encore is doing wrong.  The only thing I did was create a brand new project, imported all my media (the exact same media from the previous project) and recreated all the buttons and timelines.  I also cleared the media cache just in case.  Ideas anyone?

The navigation is a simple list with buttons, each one linking to a single timeline.  All timelines except for one have only a single audio and video asset.  The videos themselves are an assortment of formats, 480i, 720p, 1080i, 1080p, but the ones showing up as black are not a single format, so that can't be the issue.  All were compressed in Media Encoder with the default Blu-ray H264 setting (I also checked render maximum depth and use maximum render quailty on them all).  The original sources are quicktime reference files from Avid Media Composer.  Encore says that none of the files need to be transcoded for blu-ray, and they all play in Encore's preview. 

I've been creating a BD disc image so far.  I did try to create a BD folder, but that was when I was getting the error 11.

Thanks for any help...

This doesn't seem to be the problem.  In fact, I can't figure out myself how to even deselect the tracks.  When I play the tracks from the blu-ray the screen goes black, but there isn't any audio either.  It sounds like the player freezes up almost, I can hear the disc spin down.  None of the remote's buttons work, and the player goes back to the main menu after about 30 seconds of black silence.