Pull the DVR disk, put it into an enclosure, do a dd copy command (linux) to another disk. Then expand the partition with a disk utility, re-insert, and see what shows... I heard this tried with a DirectTV R15 - only problem was the extra partition space wasn't read by the DVR, probably because of the filesystem which is not the same. At best, you have an extra disk. Is the DVR like windows activation? Hardware change is okay, as long as only x number of hardware items change out of y number? In other words, would the DVR BIOS register a change? Any body tried this?