Sony CMT-DH30 Operating Instructions Manual page 100

Item
* This function is only available during karaoke mode.
100
GB
Item Name, Relevant Disc Type, Function
MODE (MP, JPEG)
Selects the data type: MP3 audio track (AUDIO), JPEG image file
(IMAGE) or both (AUTO) to be played back when playing a DATA
CD/DVD.
KEY CONTROL*
Changes the key to suit your vocal range.
SCORE MODE*
Selects the level for scoring mode.
KARAOKE PON*
Enjoys karaoke with a stereo-recorded disc by reducing the sound of
the vocals.
VOCAL SELECT*
Selects the guide vocal recorded on the Dolby Digital Karaoke Format
disc (DVD VIDEO only).
Selects the vocal type recorded on the disc (VIDEO CD, AUDIO CD
only).
Turns off the vocal (VIDEO CD, AUDIO CD only).
GUIDE MELODY*
Turns on or off the guide melody for Dolby Digital Karaoke Format
disc.