8 – Remote operation : Machine control setup110 TASCAM DM-4800 User’s ManualRecord Command TypeUse this option to make the record commands fromthe DM-4800’s MIDI Machine Control compatiblewith the unit being controlled.There are two options: True (40h) and Masked (41h).Consult the documentation of your other equipmentfor details of compatibility.Locate PrerollMove the cursor to the numeric field, which showsthe pre-roll time when a location point is reached(displayed in minutes and seconds). For example, ifthis field shows 0:10, if a location operation is carriedout to a location memory of 00:20:32, the actualpoint located to is 00:20:22.Note that this is used only in the case of Direct loca-tion (“Location to a location memory” on page 116),and not in the case of manual location operations(“Manual location” on page 116), which locates tothe value entered, irrespective of the pre-roll time sethere.Use the wheel to set the pre-roll value and confirmthe setting of this value with the ENTER key.