Diasonic Tech DDR-3128R - Manual (Page 11)

Deleting massages is only possible when the player stops it's work
completely.
Deleting Messages One by One
Choose one message that you want to erase.
Select the message by moving FILE button and PLAYBACK dial.
Push ERASE button for 1 second, and LCD will display "ERS". The
recorder plays the message to make you sure.
While "ERASE" is flickering on LCD screen, the message is erased
completely, Once message is deleted, numbers of messages on
LCD are shifted for each message.
While "ERASE" sign is blinking, if you press other buttons, Delete
function is cancelled.
Caution: You can never restore deleted messages.
Deleting All Files and Messages
Select the file that you want to delete.
To press ERASE button and FILE button together for 1 second
erases selected file and "FL.ER" sign.
All files are deleted by pressing ERASE button again.
VOICE FILES/ ALL ERASE
"AL.ER" sign appears by pushing ERASE button for 5 seconds.
If you push ERASE button again when "AL.ER" sign disappears,
recorded messages on files are all deleted.
ALL ERASE deletes not MP3, H/D files but A/B/C/D files among
VOICE files
MP3 DELETE can erase not only a single music file but also all MP3
files, and H/D DELETE can be removed through USB.
Caution
If you used up all of memory of hard disk, it is impossible to save
recorded or MP3 files. Please clear off useless files before use.
Search & Play
If you press PLAYBACK dial for 2 seconds, the recorder will play its
every message for just 10 seconds orderly.
While the recorder is scan-playing, if you press PLAYBACK dial one
more time, you can hear the message of the number you chose.
As for playback of MP3, its Search & Play function also works.
Repetitive Playback of VOICE files
By pressing REPEAT button while playing, LCD screen will let you see
"RPT", And that is going to make one message repeat forever unless
you stop it by pressing REPEAT button one more time.
Repetitive Playback of MP3 Files
If you press REPEAT button when the device plays, you can choose one
of various kinds of repeat mode (NORMAL/1 TRACK/ALL
TRACK/RANDOM).
NORMAL: Playback of all songs and stop
1 TRACK (RPT): repetitive playback of one song
ALL TRACK: Repetitive playback of all songs
RANDOM: Playback of all songs by random choice
A B Repeat Playback
"A B" sign shows up when you press REPEAT button for more than 1
second whenever you want to repeat the playback.
If you press REPEAT button again, "A B" sign shows up, and the part
that you choose starts playing repetitively.
By pressing REPEAT button again, it stops playing.
You cannot choose more than 2 messages subsequently with REPEAT
playback.
MP3 files can be played by the way of A B repeat playback.
Various Equalizer Function
If you play MP3 music files, Equalizer Function will help the player play
different genres-NORMAL, ROCK, JAZZ, CLASSIC, POP and etc.
Select one of MP3 files and choose Equalizer function as your menu by
moving the button back and forth.