Thanks for the quick help guys.....
OK - playing on my panasonic BR player - hitting display simply shows T1 C1 (which I assumed was Title 1 Chapter 1) - I did this once the movie was actually playing.
I can't get VLC on the mac to work - I have followed all the issues people are having with this.
I plugged my BD drive into my Windows 7 machine and could read the disc using VLC
PLaying the movie the title playing according to VLC Windows is: Title 40 [1.38.41]
Looking on the mac in DVDFab Title 40 is 0:16 seconds long.
VLC reported the run time as 1.38.41 for the movie so I looked at the titles with that run time. DVDFab shows 4 titles:
359, 362, 400 and 401 - all of these appear in grey text (rather than black text)
I can't determine the difference in the streams.
Cheers
GS