Tascam HD-R1 Technical Information page 7

The following is a list of direct transport commands.
Value (character string)
Stop
Play
Record
Ready
Monitor
First Track
Next Track
Prev Track
Last Track
Next Track/Marker
Prev Track/Marker
TASCAM HD-R1 RS-232C Protocol Specifications
Functions
Stops the transport
Starts playback
Starts recording
Puts unit in ready to play mode
Puts unit in ready to record mode
Moves to first track
Moves to next track
Moves to previous track
Moves to last track
Moves to next track or next marker
Moves to previous track or previous marker
7 TEAC Corporation