Distract

DIS21.DSK    : DISTRAC v2.1 - DIS 
DIS21TR.DSK  : DISTRAC v2.1 - TRACE 
DIS11DIS.DSK : DISTRAC 1.1 - Symbolic Disassembler (Distributable)
DIS2XDIS.DSK : DISTRAC 2.x - Symbolic Disassembler (Distributable) 
DIS11SCR.DSK : DISTRAC 1.1 - Symbolic Disassembler (Deft Pascal Source) 
DIS32DIS.DSK : DISTRAC 3.2 - Beta 1.1 (Distributable) 
DIS32SRC.DSK : DISTRAC 3.2 - Beta 1.1 (Deft Pascal Source) 
DIS32TBL.DSK : DISTRAC 3.2 (unknown version and type - maybe source)