Do you mean the SA8000 has an 80g inside?
Also what would happen if you swapped a bigger HD inside?
Would it load the appropriate software automatically like the Dish player does or would it need some sort of transfer software like the Replay and tivo's do?
I would guess since its hooked up directly to high speed cable, it would do it automatically like a dishplayer PVR.
I remember just swapping the 15 gig with a 40gig years ago on my first PVR the dishplayer and how happy I was when it worked after downloading and setting up in a few minutes.
I am tempted to try this with my cable PVR but if someone already has and had no luck, then I will save the effort.
Has someone already tried?