[Tremor] Tremor does not playback a Vorbis file, while libvorbisfile does

[dv]

I found a file which is not played by Tremor (svn revision 18088):

http://dv.pseudoterminal.org/blaizer_blimp.ogg

ov_open() works correctly, reading comments works as well. However, the 
very first ov_read() call returns 0. This does not happen with 
libvorbisfile.

Perhaps this file was encoded with a libvorbis version which is too new? 
(libVorbis I 20100325)