Casio BE-300 Playing Movies on CASSIOPEIA - Manual (Page 8)

[Playing Movies on CASSIOPEIA ]
To install the "File Manager" software on the BE-300, see the
installation steps described at the following section.
Installing Movie playing software on the CASSIOPEIA
At Step 6 in this process, select "File Manager" from the software list,
and then continue with the additional installation steps.
Select the "Import" option to copy files from the PC to CASSIOPEIA, or
select "Export" to copy files from CASSIOPEIA to the PC.
l Option: None
When the "SubFolder Sync/Transfer" checkbox is checked, any subfolders
present in the designated transfer folder will also be synchronized or
copied. However, the Movie Player" application will not recognize content
in subfolders. Leave the Option section as it is.
(4) The "Folder Synchronization Settings" window will reappear. Click the "Movie"
checkbox to place a checkmark in it, and then click [OK]. The settings are complete
for transferring movie files.