e14f56b4__also_fix_mp2_MPEG_audio_files__Comments
[WARNING message] Different MPEG versions or layers in one file [Fixable?] - [Comments] 
Mixing different MPEG versions and/or layers in one file is not very good. As in the previous case, this issue can be fixed only by reencoding.
Free MP3 Validator - check and repair mp3 files, it can also fix mp2 MPEG audio files
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