stanby mode for cdrecorder

Hi,

I'm new to this list, nice to meet you...

I am asking myself about putting the cdrecorder (mmc 3 compliant) in stanby mode after a period on inactivity.

Do you think that it will increase its lifetime or is it ineffective ?

If yes, how can I send a standby timer command.
I saw that I need to send Mode sense command (0x1A) but I am unable to find the stanby command.

Thanks for your help.

Thierry
France