If you have 720kB [.DSK] files you can  make a multi disk image of it (to use with fMSX or other emulators).
 Multi disk images are supported from fMSX version 1.6b1. To create one use this program that can add and extract
  [.DSK] disk images to/from multiple [.DSK] files.
  
 [This info found at http://www.faq.msxnet.org/suffix.html] 
 
 source code taken from: 
 http://www.funet.fi/pub/msx/othersys/multidsk.c
 Morphos conversion by Fabrizio "Lanch" Bartoloni (lanch@tiscali.it)

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                 4403   11204  39.3% -lh5- 878a Jun  7 22:17 multidsk/multidsk
[generic]                 1300    3842  33.8% -lh5- 4dcb Jun  7 20:06 multidsk/multidsk.c
[generic]                  403     702  57.4% -lh5- d62d Jun  7 23:22 multidsk/multidsk.readme
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         3 files    6106   15748  38.8%            Jun  9 19:03