1. Yes, Im certain, that the External stopped by itself. vMix displayed error, FMLE current fps dropped to 10fps, audio was fine, video was frozen.
2. Actually SD card shows free space of 500 MB, which means it either lost contact with SD card reader or is faulty, which happens from time to time. So the issue might have been initiated by "sudden loss of recording media".
3. vMix log:
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10.0.0.59 - RE - 2013.09.26. 12:18:09
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vMix.VMIXException: There is not enough disk space to continue this recording.
at dp.zq(String a)
at nzzv.d()
4. Recording log:
2013.09.26. 10:09:52, Version: 10.0.0.59
2013.09.26. 10:09:52, Size: 720x576
2013.09.26. 10:09:52, System: PAL 50i or 25p
2013.09.26. 10:09:52, Codec: Microsoft MPEG-2 Encoder
2013.09.26. 10:09:52, AudioDevice: vMix Audio
2013.09.26. 10:09:52, AudioFormat: 44100 Hz 16 Bit 2 Channels
2013.09.26. 10:09:52, AudioDelay: 0
2013.09.26. 10:09:52, RestartInterval: 0
2013.09.26. 10:09:52, BitRate: 8
2013.09.26. 10:59:15, StartRecording
2013.09.26. 12:18:04, StopRecording
2013.09.26. 12:18:04, Duration: 01:18:48
2013.09.26. 12:18:04, Frames: 118193
2013.09.26. 12:18:04, DroppedFrames: 17
2013.09.26. 12:18:04, DueToSourceFrameRate: 17
2013.09.26. 12:18:04, DueToHardDiskOrCPU: 0
2013.09.26. 12:18:04, DroppedSamples: 18
2013.09.26. 12:18:04, MissedSamples: 0
2013.09.26. 12:18:04, SyncedSamples: 0
2013.09.26. 12:18:04, AudioOffset: 20
2013.09.26. 12:18:04, AudioDelay: 0
2013.09.26. 12:18:04, AudioEngine
2013.09.26. 12:18:04, Running: True
2013.09.26. 12:18:04, SampleRate: 44100hz 16 Bit
2013.09.26. 12:18:04, MixingErrors: 0
2013.09.26. 12:18:04, Streams
2013.09.26. 12:18:04, Stream0
2013.09.26. 12:18:04, Samples: 0
2013.09.26. 12:18:04, Dropped: 0
2013.09.26. 12:18:04, Latency: 0
2013.09.26. 12:18:04, Stream1
2013.09.26. 12:18:04, Samples: 399266
2013.09.26. 12:18:04, Dropped: 9
2013.09.26. 12:18:04, Latency: 0
2013.09.26. 12:18:04, AudioInputs
2013.09.26. 12:18:04, Mana kamera
2013.09.26. 12:18:04, Latency: 150/80
2013.09.26. 12:18:04, Dropped: 0
2013.09.26. 12:18:04, Resampled: 98