76 GB Video Limit OR 12h video Limit (when opening .TS)

[Setsunaaa]

I have a "small" video file of 159 GB (real GB). It is a 25h recording of a "lots of concerts" day on our public broadcast channel "3sat" in Germany, DVB-S2 50 fps 1280x720.
Edit: I tried Avidemux 2.6.13 first which failed, and then upgraded to 2.6.21
When opening it with Avidemux 2.6.21 x64 I end up with 11h59m33s instead of 25h14m55s. Which matches pretty close 76 GB of those 159 GB.
It scans for quite a while, counts up to 4'540'000 Images, which matches the 25h14m exactly. But still only about 12h are shown in Avidemux.

If you need that oversized video file for testing, I can put it up on my homepage.

Throwing that file through ffmpeg with "copy stream" method may help, I am testing it. And if that doesn't work (suspecting the same 12h Limit) I'll use ffmpeg to cut it into pieces, so Avidemux can handle it for sure.

[Setsunaaa]

Sending the .ts through ffmpeg worked (ffmpeg -i c:\tmp\musik.ts -map 0:0 -map 0:3 -c:v copy -c:a copy C:\tmp\test.mkv).
Result is a 132 GB .mkv.
Now Avidemux opens the whole file and sees the whole 25h.
There are some stream errors (it is a .ts from DVB-S2, what to expect), but at different times, far away from 12h mark:

[mpegts @ 00000000026f24a0] PES packet size mismatch0:15:12.33 bitrate=12091.2kbits/s
[mpegts @ 00000000026f24a0] PES packet size mismatch8:26:14.23 bitrate=12344.1kbits/s
[mpegts @ 00000000026f24a0] PES packet size mismatch18:11:30.45 bitrate=12519.4kbits/s
[mpegts @ 00000000026f24a0] PES packet size mismatch18:15:05.01 bitrate=12521.0kbits/s
[mpegts @ 00000000026f24a0] PES packet size mismatch18:22:46.91 bitrate=12509.2kbits/s
[mpegts @ 00000000026f24a0] PES packet size mismatch18:35:24.93 bitrate=12512.1kbits/s
[mpegts @ 00000000026f24a0] PES packet size mismatch19:08:20.37 bitrate=12508.7kbits/s
[mpegts @ 00000000026f24a0] PES packet size mismatch24:36:55.79 bitrate=12559.8kbits/s
[mpegts @ 00000000026f24a0] PES packet size mismatch24:45:12.89 bitrate=12560.5kbits/s

[mean]

Probably a counter wrapping somewhere
This is an unusual file , dont expect a quick fix

[p3trus]

Setsunaaa, if you're fast - nearly all concerts are availiable in the 'Mediathek' and can be downloaded easily with jDownloader or MediathekView - no need to encode them again