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Old 3rd July 2021, 22:57   #8  |  Link
Nexin
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Join Date: Dec 2007
Posts: 150
I remember not to long ago, and for a long time the Virtualdub2 internal FFMPEG AAC encoder was encoding AAC audio with a huge Tag ID made of many FFs and other characters. I do remember near all softwares refusing mp4 and other container videos which had that long Tag ID in them. For many containers it seems the Tag ID needs to be valid for the Splitter-Muxer they use to load videos and audio, to be able to work with them.


Thanks for the MP4 Inspector link.
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