Sio2SD ver 2.4 of 2007 year.
Software for ATMEL by J.K.Zawadzki 

Configurator by Pajero/Madteam

;  cursory up/down = move underlining 
;  space, backspace = page down,up
;  U = updir read
;  Tab = directory listing: read or stop/continue 
;  Enter = to subdirectory (at file as continue: read directory)
;  D = choice deviceID 1-4
;  1-8 = set file atr to drive 1-8
;  Shift 1-8 = unset drive 1-8 as "-OFF-"
;  X = cold start


Whole contents of catalog reads in for memory of buffer Configurator. 
Status of operation is showed in right bottom corner beside word "Tab": 


Read - everything it read for buffer, driving in will read in catalog Tab again.  
Next - it not read in all (for small buffer on data). 
       Next (press) Tab - continues read, the rest (from start of buffer).
Stop - stop read directory (it press key Tab) 
       Reading will proceed with next from interrupted (if press Tab).


Enjoy
Pajero/Madteam