I am a design engineer and have been considering a purchase of equipment for a SDI loop that we can run from a PC. Simply put, what we need to do is to transmit a SDI video source and then re-capture on a workstation. We want to be able to output un-compressed, preferable HD, video from files based on a hard drive, run them thru a DUT and then capture the SDI back to files based on an internal workstation hard-drive. I realize this may be difficult to do with an HD source, without some type of RAID controller, so we will consider an SD only solution. Can we use a DeckLink Duo with two copies of Media Express?