Two known problems:

1) The Ogg format has its own tagging system (just like id3 tags for mp3). oggenc can put
these in at encode time. However, I could not get the command line for oggenc that accomplishes
this to work correctly. Not sure if there is a bug in oggenc or my command line is messed up.
The tagging functionality of oggenc is not working. Although the original command line that I tried
is still in RipEnc it is just commented out. Feel free to mess with it to see if you can get
it to work correctly. It would put the title of the song in the tag but not the artist (maybe the
other way around). Of course if you get it to work please send it my way :-)

2) Every once in a great while the variables in the song name with not be passed to the ripper.  You can
either quit RipEnc and restart it and see if that fixes it or change naming conventions and then immediately
change back to the one you want. I am unable to reproduce this bug at will and can't figure out why it happens 
sometimes and then fixes itself with no changes being made to the script. I have had this happen to me
roughly three times in the 3 years or so I have been working on RipEnc.