FOCUS Enhancements 3.2 - Manual (Page 152)

External Control Commands
138
Media Calls
mpgDir
This command returns the names of all files on the Firefly.
Syntax
mpgDir
mpgDelete
This command permanently removes a media file from the Firefly.
Syntax
mpgDelete name
Parameters
name
The full name of the media file (video or graphic overlay) to remove. The
list of all media can be obtained with the mpgDir command.