Why is there an ‘STMC’ folder appearing on my disgo Media Bank?

The “STMC” folder is automatically created every time the user presses the “LIB/UPD” button on the remote control.
This folder is used for categorising the media files in the Media Library of the Media Bank.
It does not effect the function and operation of the system when being deleted but the category of the media files in the Media Library will be removed.
It will be re-created once the user presses the “LIB/UPD” button again.