ARCHOS box rock - Manual (Page 81)

2 SUPPORTED FILE FORMATS
FILE TYPE ACTION
Directory The browser enters that directory
.mp3 Rockbox takes you to the WPS and starts playing the file
.m3u Rockbox loads the playlist and starts playing the first file
.ajz/ .mod ROLO will load the new firmware
.wps The new WPS display configuration will be loaded
.lng That language will replace current one
.txt This will display the text file using Rockbox text browser plugin
.cfg The settings file will be loaded
.fnt This font will replace the current one (Recorder only)
.rock Starts a Rockbox plugin
.ucl This Rockbox image will be flashed into the ROM
.ch8 Play a Chip8 game
.jpg/.jpeg View a JPEG image
.rvf View a movie (Rockbox format)
Rockbox User Manual