Choosing Mo Disks - Yamaha D24 Owner's Manual

6
Chapter 1—Welcome to the D24

Choosing MO Disks

The D24's internal MO disk drive uses removable 3.5-inch MO (Magneto Optical)
disks for recording and playback. Normal or Overwrite-type MO disks in a variety of
sizes can be used, but only 640 MB Overwrite-type disks support 8-track simultaneous
recording with a 24-bit recording resolution. The number of tracks available for simul-
taneous recording depends on the type of MO disk used, its capacity, the selected
recording resolution, and sampling rate. See the following section for more informa-
tion.
Both normal and Overwrite-type MO disks support 8-track simultaneous playback at
sampling rates of 44.1 kHz and 48 kHz, and 4-track simultaneous playback at 88.2 kHz
and 96 kHz.
Overwrite-type disks feature the Overwrite logo shown here.
Tracks Available for Simultaneous Recording
The following table lists the number of tracks available for simultaneous recording with
a variety of normal and Overwrite-type MO disks at each recording resolution and
sampling rate.
Overwrite
Normal
For performance reasons, it's recommended that you do not use 128 MB MO disks.
When tracks that have already been recorded are playing back, depending on the num-
ber and performance of those tracks (i.e., how heavily they've been edited), the number
of tracks available for simultaneous recording is reduced. Use the Optimize function to
arrange the recorded sound files for optimum performance. See "Recovering Disk
Space" on page 172 for more information.
Recording Time
The total recording time depends on the disk capacity, recording resolution, and sam-
pling rate. A 640 MB Overwrite-type MO disk, for example, offers a total recording
time of 120 track minutes with a 16-bit recording resolution and 44.1 kHz sampling
rate.
The following table lists the approximate recording times offered by a variety of MO
disk capacities, with a 16-bit recording resolution and 44.1 kHz sampling rate.
Disk Capacity
640 MB
230 MB
D24—Owner's Manual
Disk Type
16-bit
640 MB
8
230 MB
8
640 MB
8
230 MB
5
Track minutes
(mono)
120 min
43 min
44.1, 48 kHz
20-bit 24-bit
8 8
6 6
6 6
3 2
Recording Time (16-bit, 44.1 kHz)
2 tracks 4 tracks
60 min
21 min
88.2, 96 kHz
16-bit 20-bit 24-bit
4 4 4
4 3 3
4 3 3
2 1 1
8 tracks
30 min 15 min
10 min 5 min