FORD 2012 F-550 v.1 - Manual (Page 67)

Track/Folder mode: Available only on MP3 discs in CD mode. In Track
mode, pressing
SEEK, SEEK will scroll through all tracks on the
disc
In Folder mode, pressing
SEEK, SEEK will scroll only through
tracks within the selected folder.
Press
FOLDER, FOLDER to access the previous/next folder (if
available).
COMPRESS (Compression): Available only in CD/MP3 mode. Press
MENU until COMPRESS ON/OFF appears in the display.
Entertainment Systems
67
2012 F-250/350/450/550 (f23)
Owners Guide, 1st Printing
USA (fus)