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