I just can't fathom this Zappiti

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Just got my Dune D1 installed and I can see my videos and music on my network and play them from the Dune so I thought I'd install Zappati - one of the many reasons I bought the Dune.
However, it's been a nightmare. I tried and failed, went with Yadis which I failed at so now I'm back with Zappiti and need help.
I have read Damians guide but seem to be doing something wrong as when I perform a scan all my videos 'fail' so-to-speak. I don't know what to do and having read so much on Zappiti I'm overloaded.
My video and music files are on my Qnap TS-109 and connected to the Qnap is a 2TB USB disc with more music and videos. I have separated the videos in to Movies and TV Shows too. This means I have files named Movies and TV Shows on both the Qnap and the USB disc - is that OK to do ?
Zappiti does seem slow on my laptop. For example when I click 'configure' it is sluggish when opening.
I have pointed Zappiti to where my files are which at the moment consist of 4 folders named QMultimedia/Movies, USBDisc1/Movies, QMultimedia/TV Shows and USBDisc1/TV Shows. I believe the individual files are correctly labelled as per instructions by Damian.
I then hit 'scan' and that is when I run into a brick wall the files all 'fail' and I don't know what to do next ? Please help, I have tried my best

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