Originally Posted by EmaticUser
I have several AT103B units.
If I select MENU; System; Information, One (of the units) shows:
SW Version Sep 5 2014-17:37:27
HW Version ABL7802-R836-ATSC
What I have found is that a show recorded using one of these units will show up if the HD is moved to one of the others - but cannot be played (back) on the other unit.
I wondered if "everyone' had a different SW Version, or if there might be a 'few' versions out there so that, if one could get two models with the same SW Version, a recording made using one of the units could be played back on the other (upon moving the HD, of course from one to the other).
Has anyone investigated this situation?
Also, has anyone for an Upgrade file? I would think that flashing each unit with the same 'upgrade' might turn them into 'identical' units.
I've seen this same problem in other brands of these MStar-chip-based boxes, such as HomeWorX and iView.
The original versions of all these boxes had a 7816 SoC (System on a Chip), but the newer ones have a 7802 SoC. Unfortunately, the two chips require different firmware (so there's no single firmware upgrade that will work on both types of box), and there's an incompatibility between the recording format used by 7816 and 7802 firmware. As a result, recordings made on a 7816 box cannot be directly played back on a 7802 box or vice versa.
But there is a trick you can often use to get around it, if you have a PC: rename the recordings and change the file extension from .mts to .m2ts. (Recordings made by 7802 boxes will also have small files with extensions of .mts.meta. You can ignore those.) Once renamed, the files will show up in the "Movie" section of the USB menu instead of the "PVR" section; and usually they will play on both box types.
This doesn't work 100% of the time. I've had trouble taking high-def recordings made on 7802 boxes and playing them on a 7816 box. They "play," but the playback keeps pausing every few seconds, so it isn't really watchable.
But going the other way (from 7816 to 7802) seems to work better, and standard-def recordings seem to work in both directions.
.Mts and .m2ts files are the same format (AVCHD). But these boxes recognize .mts files as their own recordings, so they put .mts files in the PVR section and are more picky about the contents. If the extension is .m2ts, it thinks it's a video you got someplace else, so it puts it in the Movie section and is more forgiving.
BTW, if you have an AVR, the same trick will let recordings play back with full Dolby Digital 5.1 audio (if they were broadcast that way), instead of always playing back in simple stereo.
One drawback, though: the 7802 firmware will show closed captions during playback - but only in the PVR section, not in the Movie section. (The 7816 firmware won't show closed captions during playback in either section.) So if you use this trick you'll lose the ability to play closed captions on the 7802 boxes. Of course if there's room on your HDD, you could copy the file instead of renaming it, so you could play it in either section.