so...did you use dbx on your 234?
which tape speed did you use?
--> hi speed (9,5) or normal (4,75)?
let's say u used normal and no dbx: every 4 track will be able to play it.
if u used hispeed and dbx look out for tascam 464,424(I,II,III),244,246 and more,also there are other...