AC3 repair invalid data

[armin666]

I'm using latest mkvmerge version to mux video and audio together, but the audio file outputs lots of errors like

Warning: 'audio.ac3' track 0: This audio track contains 128 bytes of invalid data which were skipped before timecode 00:00:00.000000000. The audio/video synchronization may have been lost.

eac3to can't even open the file - The format of the source file could not be detected. <ERROR> . But all my media players play file without problems and sync. Mediainfo does recognize file correctly...

Format : AC-3
Format/Info : Audio Coding 3
File size : 266 MiB
Duration : 1 h 36 min
Overall bit rate mode : Constant
Overall bit rate : 384 kb/s

Audio
Format : AC-3
Format/Info : Audio Coding 3
Format settings, Endianness : Big
Duration : 1 h 36 min
Bit rate mode : Constant
Bit rate : 384 kb/s
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 spf)
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 266 MiB (100%)
Service kind : Complete Main

How can i fix/repair/remove invalid data from ac3 file?

[poisondeathray]

You can try ac3fix / ac3fixgui

[armin666]

i already tried, ac3fix says Finished. Found bad frames. Final wrongness is -1644 bytes , but mkvmerge same error invalid data...

[poisondeathray]

I guess you can ignore it if the media players are happy with it

Maybe try rewrapping it with ffmpeg ? or Try mux/demux with tsmuxer