[id3lib-devel] id3v2.4 tags

[David E. <eh...@gm...>]

Forgive me if this has been asked, but I couldn't find it in the
documentation or in the mailing list archives.

Are id3v2.4 tags supported?  I used the *nix id3v2
http://id3v2.sourceforge.net/ tool, but it can't seem to recognize id3v2
tags.  The tags are correct, and changing the version to 03 (since 03
and 04 are generally interchangeable) made id3v2 work.  I'm asking here
because id3v2 is based on id3lib, and I have the latest [5-year-old]
version.  This happens under both Debian and FreeBSD with their
packages/ports.

And a random question:

Why are there two 00 bytes following the description string (line 3)?
54 00 I understand; that's 'T.'  The next 00 is in the id3 specs and
documented as a delimiter.  The third seems to indicate the character
encoding, but 00 is ISO-8859-1, and the following string is clearly
UTF-16 with BOM, like the first string.

00000080   54 58 58 58  00 00 00 35  00 00 01 FF  FE 41 00 4C
TXXX...5.....A.L
00000090   00 42 00 55  00 4D 00 41  00 52 00 54  00 49 00 53
.B.U.M.A.R.T.I.S
000000A0   00 54 00 53  00 4F 00 52  00 54 00 00  00 FF FE 53
.T.S.O.R.T.....S
000000B0   00 74 00 72  00 6F 00 6B  00 65 00 20  00 39 00 00
.t.r.o.k.e. .9..

Changing the 00 preceding FF FE to 01 causes a parse error.  The
description is printed by id3v2, but not the value.