Missing files after "T"????

Strangest thing. Since ATV 2.0 I decided to try Media Player again, had been using XBMC, When I added my network drive (1GB External drive on E3000 router) to the library it only came up with 731 of the 804 movies. On closer inspection if is stopping at about “T”. If I navigate to the files I cannot see anything after “T”. 

 

I can see everything on my PC and all works fine. Wend back to XBMC and its the same there. Nothing after “T”!!

 

Uninstalled everything, reset everything and still the same. 

 

Any ideas as its driving me mad!!!