After reading the long thread on the eSata port being activated, I decided to hook up an eSata array to my HR20. I got an enclosure and put in three Hitachi 1 TB drives (3 TB total) and set them up in a RAID-0 array. It's working fine, but the free space reported seems to be wrong. Just wondering if anyone out there can help me with the math and let me know if this seems right??? Here are the total hours I have recorded (actually recorded, not just scheduled to record): - 1 hr in HD through DTV - 1/2 hr in HD through over the air antenna (digital local) - 5 1/2 hrs in non-HD through over the air antenna (digital local) - 5 hrs in non-HD through DTV My system is currently reporting 91% free space. I don't know all the ratios, but I'm thinking with 3 terrabytes of space, that amount of recorded shows should NOT be taking up 9% of my space. Doesn't that seem wrong? I tested the eSata array to make sure it was being used (and not the internal drive instead) and I'm fairly certain it is working ok. To test it, I took out one of the Hitachi drives while I was watching a recorded show and it immediately froze. Once I put the drive back in and restarted everything it worked fine again. Also, I'm fairly certain the system is using the eSata array because I had shows already recorded on the internal drive and once I hooked up the eSata array it did all the software downloading steps and once it booted up, my recorded shows were gone. So, any advice? Do you think those shows listed above really take up 9% of a 3 TB array? Or is the free space just being reported incorrectly? Maybe the HR20 isn't able to correctly estimate free space when there is 3 TB? If that is the case, do you think it will use the full 3 TB and just report incorrectly, or will I not be able to take advantage of that much space? Any thoughts are appreciated. I've read a lot of posts on this board and I'm hoping some of the gurus here might be able to point me in the right direction. Thanks.