To access the protection settings for your song, follow these steps.
Press UTILITY.
Press TR1 for SONG.
CURSOR once to the right.
Press TR3 for PTC (Protect)
If the song is protected already, the Micro-BR will read UNPROTECT SONG?
Pressing TR4 will unprotect your song.
If the song is unprotected, the Micro-BR will read PROTECT SONG?
Pressing TR4 will protect your song.