Sony PCG-TR2MP Hardware Manual page 66

Using your VAIO computer
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If you press the power button for more than four seconds, the computer will switch off automatically.
When the computer is in Hibernate mode, you cannot insert a disc.
Hibernate mode requires more time than Standby mode to be activated.
It takes more time to return to normal mode from Hibernate mode than from Standby mode.
Hibernate mode uses less power than Standby mode.
Do not move the computer until its power indicator turns off.