So I decided to get the DVR technology and all that goes with it. I'm curious about the EHD. What is the largest amount of drive space you can use? I know there are specs but are they firm? Can you plug in an EHD with videos stored from a pc, and use this like a media player? I have 12tb of media on EHDs of one kind or another. I don't need the DVR to be a media player but might be nice. I guess what made me step up to the deal is the VOD services and the occasional 1080p movie I might watch.