"gststreamer0.8-mad" seems to only allow Rhythmbox to play MP3, does not
enable Sound Juicer to rip MP3's

To rip MP3's with Sound Juicer, you you will need to install the following:
1. liblame0 (in another world)
2. gstreamer0.8-lame (this one is in a galaxy, outside our universe!)

The other world is: (add to Synaptic's repositories list if not already there!)
ftp:ftp.nerim.net.debian-marillat/ unstable main

This particular galaxy is located at:
http://henrik.synth.no/deb/

First install liblame0 using apt or synaptic.
Then download and install gstreamer's lame as follows:

dpkg -i gstreamer0.8-lame_0.8.2-2_i386.deb


FYI, here is the Info from the thread on the web detailing how the gstreamer0.8-lame deb was build:

1. fetch a gstreamer-lame RPM. I got mine from
http://rpm.pbone.net/index.php3?stat...gstreamer-lame
(Choose gstreamer-lame v0.6 for sound-juicer v0.5.10, or v0.8 for
sound-juicer v0.5.12+. I used a PLD package.)
2. alien gstreamer-lame*.rpm
3. dpkg -i gstreamer-lame*.deb