ELTKDT_R.TD0 - Early Learner's Toolkit data disk (right)
ELTKSY_L.TD0 - Early Learner's Toolkit system disk (left)
LOGOPROF.DMK - LOGO Professor Program Disk (suspect Catweasle image, 
               copy does not work)
MATHPROF.TD0 - MATH Professor disk (left) (not all tracks are formatted)


fjk,20070304
