P Smith, I will do a search for your thread, if you have a link and could provide it would be much appreciated. So you know which chip contains the RID? Nice! Assuming no other conflicts, that would be ideal, swap chips, and then just place the old HDD into the new unit and fire it up! I wonder if you would have to use the same (old) card or the new card that came with the new unit? Hmmm... And I wonder how that unit would show up to D*TV? Probably as the old HR24, correct? peds48, Yes, we are all aware that we are taking our lives into our own hands by tampering with our boxes, as I believe has been covered about 1000+ times in this thread and every other thread like this one on this site. What can I say, I am a rebel. And apparently not alone. Fact of the matter is: the D*TV tech that I talked to on the phone didn't even care. Well, he CARED. As in "...hmmm, I am not supposed to know about that..." but when I explained how I immediately open my units up and swap out the 350/500 GB HDDs for a new 2TB HDDs in ALL of my units his response was "...holy crap, that is a lot of storage space! What do you do with 6 TB?!?!...", and not: "...well, I am going to have to cancel your account and send the D*TV police to your location to lock you up in D*TV prison...". In fact, when he agreed to replace my admittedly opened and modified HR24 he marked it as "FedEx to customer" and not "install for customer". I even told him of my plan to immediately open it and put in the new 2TB HDD and he stuck his fingers in his ears and went "LA LA LA I AM NOT LISTENING", but he definitely did not ban me from being a customer or getting new equipment. Fact is, they are suprisingly cool with it if you are open and honest and not breaking and replacing their units willy nilly. It probably depends a lot on the tech that you get I am sure, but I rarely call D*TV for service and everytime that I have I have not hidden anything and they are always OK with it. $$$ > legalities apparently. They would rather have a regular committed paying customer who doesn't request service except when the equipment fails on its own accord and actually saves them money by doing his own swaps and installations. OK... climbing off the soapbox now, just an FYI, they are aware and they are not prosecuting. He actually seemed to be taking notes, like "so, what brand of drives do you use? how does it work out for you? isn't 6GB overwhelming? how do you find programs that you recorded at the bottom of the list?" Yeah, that last one is something that I wanted to address with D*TV, I have to page through literally hundreds of pages to reach something from waaaaay back. They need to add a "Search" or "Filter" or something to that damned listing, LOL... Thanks for all of your advice and input BTW. Even peds. That is what makes this site a gem!