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