Do all HDtracks.com aif files have four bytes of trailing nulls at end

[paultaylor]

Because of a problem reported by a customer I have downloaded two albums from hdtracks in aif format (Blur/Magic Whip, Green Day, American Idiot), in both cases there are 4 null bytes at the end of the file after the APPL chunk, that I don't believe should be there.

This causes a problem when editing because it confuses my file writing routine. Since this always writes ID3 to the end of the file AFTER the four bytes and it then becomes unreadable, in the original file the ID3 chunk is before the APPL chunk so is readable.

Is this extra 4 bytes evident throughout the HDTracks catalog, and am I right in thinking it is an error, (although even if it an error I will have to work round it).