DATA'S SOLUTION FOR PLAYING RTZ THROUGH DOSBOX:
example:
extract to c:\
go inside dosbox
mount c c:\
c:
cd RTZ
subst d .\
d:
install
change install path to c:\rtz
run install (do not move 45 mb)
configure it right.
play the game.
I didn't have audio but I'm not sure if you uploaded it as it appears to be redbook audio and those are stored in audio tracks I recall. not certain.)
You can then recreacte the archve from c:\rtz (as you installed it from the same directory as where you installed it too (see the subst trick) )
Play withit yourself. (you can say the c:\ is your cdrom)
Thanks, Data!

k: