Lenovo 4304493 - Manual (Page 38)

Changing Modes
You can switch between normal mode (up to 20 times the speed of an
ordinary CD player) and power-saving mode (up to 10 times the speed
of an ordinary CD player) with the Mode Selection button.
The default mode (data transfer rate) varies with the type of power
supply.
Attention
Do not press the Mode Selection button when the in-use ( )
indicator is on.
Note
The data transfer rate might be slower than 20 times the speed of
an ordinary CD player, depending on the system configuration.
Switching to Power-Saving Mode
1
Press the Mode Selection button d M ).
2 Confirm that Lo is displayed in the indicator panel.
Switching to Normal Mode
1 Press the Mode Selection button ( M ).
2
Confirm that Hi is displayed in the indicator panel.
Note
The two modes are for use only with data CDs; when you use
audio CDs, the CD-ROM drive will automatically use
power-saving mode and will run at the speed of an ordinary CD
player.
Power Mode
AC Adapter Normal mode
(up to 20 times the speed of an
ordinary CD player)
Battery pack
Alkaline batteries Power-saving mode
(up to 10 times the speed of an
ordinary CD player)
Part 2: User's Guide 2-27