I have an HDR-1000S, purchased March 2015, and have just suffered the "disappearing HD" problem - 'Recordings' previously 82% now shows "You have no recordings, disk space used <1%", record/pause/play etc. functions don't work. Have tried the usual power cycling, factory reset, and have removed the HD, started the machine without it, replaced it and started it again, all to no avail.
Searched online and came across (and joined!) this great forum, and it seems this is a common problem, with original reports dating Nov 2015 with boxes then ±2 years old (maybe when the 1000S was originally introduced?). What I am finding incredible is that forum contributors are still experiencing the problem, 4 years later, even on more modern models and with no apparent fix - except to bin the faulty unit and buy another one!!! It may be the best UI on the market and, as somebody has commented, this is good for Humax's business - but the situation seems bizarre, to try and put it politely.
Under 'problems', Freesat advise:
Loss of hard drive and recordings
We are aware that some customers have experienced issues with their box failing to connect to their hard drive, meaning recording functionality, including live pause/rewind, and stored recordings are unavailable. We have been working with Humax to identify the root cause and Humax are now able to provide a resolution for affected customers.
If you have experienced this issue, you will need to contact the Humax customer care centre for further information and details of how it can be resolved.
Humax customer care centre: 0344 318 8800
However, several members report contacting the above number, but not receiving a fix.
As a newbie to the forum, may I please ask if there is indeed any known fix for the problem (not the "bin-it" option) ?!