Before the write, your read program is actually writing out "Third Part Frame id: TPE1 Frame Size: 10 Flags: \0An artist" and "Third Part Frame id: TALB Frame Size: 9 Flags: \0An album", but those "\0" bytes are not visible.

Your writer needs to not deal with just the frame type, frame length, and flags. It also has to deal with (for some frame types) one more byte which I quoted the documentation for above.

- tye        

In reply to Re^3: ID3 tag version 2.4.0 Pack and Unpack (text encoding byte) by tye
in thread ID3 tag version 2.4.0 Pack and Unpack by thanos1983

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