Originally Posted by JHBrandt
Sounds like my 2.25 TB RAID array might be a perfect match if I can ever get this %^@#$ thing working.
OK, I think I have this %^@#$ thing figured out now. The HDD dock I was using was feeding the name of the dock
, not the HDD, to the AirTV; so no matter what HDD I put in, the AirTV thought I was reconnecting the same HDD I started with! But since the HDD didn't have the format the AirTV thought it had put on there, it thought something was wrong with the HDD and kept popping up that ridiculous error message. (AirTV needs to generate a volume label and check that instead of relying on the model & serial numbers reported by the dock.) So the trick was simply using a different dock. Changing docks made it finally
prompt me to format the HDD again.
One troubling thing, though, was that when it prompted me to format the "new" HDD, it said I would lose any recordings, not only on the new HDD but also the old one! That means it's not possible to swap HDDs - each time you swap back to the old HDD you have to format it again!
(The dock I switched to reports the actual drive model & serial numbers, so I shouldn't have this same problem again.) Edit:
Wrong - apparently there are even more pitfalls than I realized! I ejected the HDD to recheck the partitions on my PC, then tried to reconnect it to the AirTV without changing a thing. Nevertheless, the AirTV refused to accept it. So I reconnected it to my PC and discovered all the partitions were now gone! I'm not sure whether it was the PC, dock, or AirTV that wiped them out, but it looks like I'll have to switch docks and reformat yet again.
IMO this HDD management is completely unacceptable. Even if the recordings are encrypted and/or stored in a "secret" file system (and there's no valid reason to do either with OTA recordings), you need to be able to swap, clone, or otherwise back up your HDDs without losing all your recordings!
In the meantime, all I can recommend is, settle on an HDD, let the AirTV format it, then leave it there forever, as if it were physically part of the AirTV. In fact I'd recommend plugging the AirTV (and the HDD, if externally powered) into a UPS so there's no chance of a power failure wiping out your recordings. For backup, your only hope is mirroring, or possibly a RAID array, with the ability to replace a failed HDD "hot" (i.e., without disconnecting or powering down the remaining drives). Either would be disproportionately expensive for what's supposed to be a "cheap" DVR.
As for the missing "record" button, it appears the Roku version of the Sling app simply doesn't support it. (And yes, I checked and according to the AirTV Web page I have the most recent Roku app version.) Nor does it appear to support playback of existing recordings. So the AirTV DVR Web page is wrong - at present all the Roku app can do is format or eject the HDD.
You'll need the Android or iOS version of the Sling app to access the DVR functions. (I don't have an Amazon Fire device, so it's possible the Amazon app also works, but regardless, this needs to be fixed pronto. If the Web page says Rokus will work, folks with Rokus are going to expect it and be P.O.'d when it doesn't work!)
More info: the AirTV estimated my recording time, with a maxed-out HDD, as 370 hours. (Any HDD over 2 TB should get the same.) Dividing that into 2000 GiB shows they're estimating about 5.4 MiB/hr, which sounds about right for 720p. In practice, SD shows should be much less and most 1080i shows will be more. Oddly though, I recorded a 30-minute SD show and it now shows 369 hours and 30 minutes as my remaining recording time. It's as if it uses 5.4 MiB/hr regardless of the resolution of the show being recorded
I know the AirTV transcodes; otherwise you couldn't watch with a Roku. But I assume it records OTA content exactly as received (that's how most DVRs work) and transcodes on playback. Otherwise I'd expect much more recording time out of my 2000 GiB.