Created attachment 63331 [details]
a capture of rb

That's definitely a gstreamer problem.  Early versions of gstreamer had this problem, what version are you using?

This commit in gstreamer-plugins-good (which was included in 0.10.2) fixed it for me:

2006-01-23  Jan Schmidt  <thaytan@mad.scientist.com>

        * gst/id3demux/id3tags.c: (id3demux_read_id3v2_tag):
        * gst/id3demux/id3tags.h:
        * gst/id3demux/id3v2frames.c: (id3demux_id3v2_parse_frame),
        (parse_comment_frame), (parse_text_identification_frame),
        (id3v2_tag_to_taglist), (id3v2_are_digits),
        (id3v2_genre_string_to_taglist), (id3v2_genre_fields_to_taglist),
        (parse_split_strings), (free_tag_strings):
          Rewrite parsing of text tags to handle multiple NULL terminated
          strings. Parse numeric genre strings and ID3v2 type
          "(3)(6)Alternative" style genre strings.
          Parse dates that are only YYYY or YYYY-mm format.
          (Fixes #328241 and #322154)

If you have a newer version of gstreamer but still see this problem, you probably need to delete your ~/.gnome2/rhythmbox/rhythmdb.xml and re-import your library, because rhythmbox won't re-read the tags if a newer version of gst is installed.

After deleting my db, Rb reads all the tags okay.

*** This bug has been marked as a duplicate of 331393 ***