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Basically there are two different types of recorders (1) PVR/DVR and (2) a DVDR. There are many variations of PVR - most only recording FTA TV, others only pay TV, a few recording both and a few with external inputs like a VCR. The [http://www.dtvforum.info/index.php/topic/161206-the-basics-of-digital-pvrs-dvdrs-for-beginners/ DTV Forum Essay on Digital Pvrs and Dvdrs] explains the differences as well as touching on Subscription Free Digital Video Recorders.The problem with AV Forum Australia is that Australia uses a different television broadcast standard than does North America. Information on AV Forum Australia is good to gain a fundamental understanding of the technologies, but use caution in product recommendations as they are centered around that regional marketplace and not the United States.Units such as the Panasonic DMR-EH59GC-K are DVD Recorders with an internal hard drive. Units like these are very few. The Panasonic DMR-EH59GC-K was manufactured in 2012 and seems to be the most recent as of early 2015.