You can archive to external hard drives - but these are not portable in the sense they are tied to the device. So you can't then plug them into your PC and expect to see the content. The only way out of the box is via a BD recording. Mainstream equipment will never let you obtain an unrestricted digital copy of HD material - far too easy for those inclined to post it on the file sharing sites royalty free. I guess it can be done by those in the know - as anyone with a Kodi streamer box can see.