eac3to v2.46
command line: eac3to  D:\_Video_Samples\ts\300.edit.ts 2: ac3
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This doesn't seem to be a valid MPEG2 stream.
TS, 1 video track, 3 audio tracks, 0:00:21
1: VC-1, 1080p24 /1.001 (16:9)
2: AC3, English, 5.1 channels, 640kbit/s, 48khz, dialnorm: -27dB
3: TrueHD/AC3, English, 5.1 channels, 48khz, dialnorm: -27dB
4: AC3, Chinese, 5.1 channels, 448kbit/s, 48khz, dialnorm: -27dB
This audio conversion is not supported.
