at least some part of it? below are examples at the start of files:
OPUS : OggS OpusTags Lavf58.71.100 encoder=Lavc58.129.100
MKV : libebml2 v0.21.3 + libmatroska2 v0.22.3 mkclean 0.9.0 o from Lavf58.78.100
MP4:
4Hctts З А А А А А А А А А А
what`s the purpose of this space
CHM MSCompressed : lot of empty space at the end of file
MP3 processed by mp3packer - mp3packer2.04-268
mp3packer2.04-268
mp3packer2.04
mp3packer2.04-268
mp3packer2.04-268
mp3packer2.04-268
mp3packer2.04
lot of duplicate rows at the end of file