Roland SP-404MK Reference Manual page 136

"EXPORT" folders.
From your computer, you can select the project to export from the "IMPORT" folder list screen.
1
Open the SD card on your computer.
2
Move the exported project folder (PROJECT̲**) from the "EXPORT" folder to the
"IMPORT" folder (Importing/Exporting (Using the SD Card)).
8
Press pads [1]‒[16] to select the project number to import.
Normally, you should select a pad thatʼs blinking yellow (an empty pad).
Pad
status
Unlit
(dark
orange)
Blinking
yellow
Blinking
red
Lit red
9
Turn the [VALUE] knob to select the project to import, and press the [VALUE] knob.
The project is now imported.
When you import a project to a project number that already contains a project (the pad lights up red), a
message is shown to confirm the overwrite-save.
To import and overwrite, turn the [VALUE] knob to select "OK," and press the [VALUE] knob.
Performing this operation overwrites (erases) the project in the import destination.
Never turn off the power or remove the SD card while the screen indicates "Working..."
Explanation
Project number that already contains a project
Project number for which a project hasnʼt been created (empty project)
Project number to which the imported project is saved
Project number to which the imported project is saved (if a project already exists at
that project number, it is overwritten with the newly imported project)