Assigning to package. package-review is not the appropriate place for this.

This could be done if gstreamer-plugins-good >= 0.10.4 was installed it has
support for ID3v2 tag editing.  

Tag editing/viewing of ID3v2 files works even if MP3 playback is not present, so
it can work without gstreamer-plugins-{ugly,bad} (which can't be shipped with
Fedora for patent reasons).  

OGG tag editing is enabled in rhythmbox but won't work until upstream gstreamer
enables it the gstreamer-plugins-base package, see http://bugs.gnome.org/335635.
 It certainly wouldn't harm anything to enable it.

John, can you look at this ?

Alex, what exactly should I expect to see ? I have built a rhythmbox with
--enable-tag-writing, but the entries in the Properties dialog for songs are
still not editable. I have tried it for both oggs and mp3s

I tell you one thing: Ubuntu in base form is provided as is Fedora (no
patent-loaded packages by default). And if I install appropriate plugins
(gstreamer-plugins-{ugly,bad}, maybe gstreamer-ffmpeg) everything just works.
Tag editing, nautilus sound preview (Fedora only do this for ogg files, even if
gstreamer-plugins-{ugly,bad} is installed). So, why Fedora cannot handle these
things as smoothly as Ubuntu does? Don't forget these twos are patent-free
distros in the same way.

I don't unserstand your comment Pavel.  No one said we weren't working on
getting tag editing working.  I enabled tag editing in the latest rhythmbox
however I belive that ogg or flac tag editing is not currently in gstreamer
(http://www.mail-archive.com/rhythmbox-devel@gnome.org/msg02900.html) so that is
not going to work until it is.

Please do not refer to my comment #5, I just misconceived the comment #2. I take
back my previous words.

So, when you enabled the tag editing in the recent rhythmbox builds, my comment
#5 losts its sense now. Forget it, please.

But my question #2 still stands: Why does not the Nautilus's sound preview for
MP3 files work? Notice: I've installed gstreamer-plugins-{ugly,bad}. Maybe
should I fill a new bug report?

Yes, please file separate bugs for separate issues. 
John, can we close this bug now ?