How much memory is taken up and how many shows do you have downloaded?Thinking of purchasing a HD specific to this and want to make sure I size it properly to be future proof for the next 5 or so years.
@wisc4fun - without doing some serious adding up, the 4k shows average 1.7 to 1.8 gB each. This compares to closer to 500mB for 3k shows. I now have 360 4K shows downloaded out of around 1600 and my models folder is 1.4tB on an external HD of 4tB.
So - you need to project based on your purchasing habits - if you buy 300 shows a year for 5 years you will need (I think) 2.7tB of space - and you should double that to allow for backup across two devices. And that is just for new releases - assume that you build up a similar collection to me of old shows and previous 4k shows and you will be looking at 4.1tB for each copy (primary and back up).
So a 6tB device is probably best - but I'm sure
@Wyldanimal can advise on use of RAID devices.
HTH