Trying this since no DVD Maker on new Win 8.1 laptop. (Tanks Microsoft!)

I put 2 .wmv videos on the disc, first one a photo slideshow, second one a home movie.
It encoded and burned to disc OK as far as I could tell.
But when I play with VLC only the first one plays.
I can find the VOB for the second in explorer and then play it with VLC.

So why don't they both play straight thro' the disc ?

Any ideas what I'm doing wrong? Thanks