This thread is titled "GBox - what does it do and how does it do it?" -- But -- there are 'Two' G-Boxes -- so I'm not sure which one(s) are being discussed here
My personal experience(s) with 'Both "Matricom" G-Boxes are 'very positive'
Plus, there are a few 'G-Box' copies available, which are copies of Matricom's G-Box Midnight and the G-Box Midnight 'MX2' - the MX2 is their most recent Box
I've purchased both Boxes and my experience with both is totally positive - I loaded both boxes with 'Many' Android Apps and loaded XBMC on both with 'Very Many' addons and programs -- I kept the MX2 and sent the G-Box Midnight to my daughter who lives in another state -- and we have been enjoying both Boxes, without issue!
MagicMan3... when you say the G-Box couldn't play "any media" -- can I ask...
Which G-Box you are talking about and was your G-Box a Matricom Box
What was the file extension(s) and/or the container type(s) of the media you were trying to play
Was the media played locally from a USB HDD - or over your local network (via Wired - or Wireless)
Personally, I'd recommend the Matricom "G-Box Midnight MX2" - it's supported very well from both the MFG'r/Matricom' and their user community, on the forum... http://matricom.net/forum/