FUPPES Not Listing or Streaming Video Files ! AUDIO is fine

I am majorly stuck at a client site , I have a 5Bay Drobo FS running with Drobo Apps, I installed FUPPES off the Drobo.com/droboapps page

I am trying to access it off a APPO BluRay Player & very oddly only the WAV & MP3 Files show (JPG & PNG also) in the listing
These Audio files are also the only ones that play across my BluRay

MKV / AVI dont even show as listings if i navigate to a folder let alone playing them [/size][/font]