Roland R-44 Owner's Manual page 21

From the Main screen, press the [DISP] button twice to show the recording buffer capacity (BUF: buffer
gauge).
The recording buffer is memory that temporarily stores the input sound before it is written to the SD
memory card. The buffer gauge indicates how much of the recording buffer has been used. Normally, the
recording buffer never reaches capacity because input sound is immediately written to the SD memory
card. However, if the SD memory card processing capability decreases and writing data to the SD memory
card is delayed, then the data may accumulate to an excess and the buffer may overflow. (The SD memory
card processing capability may be affected if file arrangement on the card becomes irregular due to project
files being repeatedly written and deleted. If such a situation is encountered, you can restore the card to its
original processing capability by formatting it.)
* When the recording buffer is close to capacity, the "SD buffering" message is displayed.
* When the recording buffer reaches capacity, the buffer gauge moves all the way to the right edge and the "SD Card
Slow!" message is shown. Recording does not stop even if the "SD Slow" message is displayed, but some sound is
not recorded. This message will not disappear until a button is pressed.
* For important recordings, we recommend formatting the SD memory card before use.
* Some SD memory cards may have a slow writing speed, so that even immediately after they have been formatted,
recording at a high bit rate may cause a similar message to be displayed. When purchasing an SD memory card,
please check whether it has been verified to work correctly with the R-44 (p. 76).
Introducing the R-44
Remaining buffer space
21