Photos on TV

Hello all,

I'm hoping that there is a techy type out there who might be able to help me out.

I've got a number of files on my nas which contain photos.  I can view all of these folders on my laptop.  When I try to view the photos on my TV via a PS3 a few of the folders do not appear in the list.  When I try to view the photos directly on the TV through its ethernet port I get the same missing folders as with the PS3.

Anyone have any ideas why some folders do not show up on the PS3 and TV?

 Thank you.