In still another aspect of the present inventions, the frame has a plurality of sets of registration surfaces which are each adapted to register {HEAD ~ the frame} to {TAIL ~ the cassette handler support surface} 
to
In still another aspect of the present inventions , the frame has a plurality of sets of registration surfaces which are each adapted to register { HEAD ~ the frame } to { TAIL ~ the cassette handler support surface }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL