Love the forum! Took everyone's advice and got seagate evd esata 2tb hard drive with mx1 enclosure for brand new hr24. I hooked up the seagate following d* posted instructions. DVR display said it was formatting hard drive. Everything worked fine after formatting. Did test record, played back fine. Two questions: test record was only a 30 minute HD show. However, percentage meter said there was 99% left. If I'm recording on 2tb, shouldn't the percentage not move that much? Does the % meter become useless with an external hdd? Second..I reversed installation and removed external hdd to check if it was recording on it or the internal hdd. With the external hdd removed, the hr24 isn't showing a screen or booting up. I reattached the external hdd, and hr24 boots up fine. I did test record on the internal hdd before hooking up seagate to see if it disappeared from the list once the seagate was hooked up. Unfortunately, wife deleted the program so I can't check it that way. Thoughts on the % issue and how I can tell if it's using the seagate?