This Update is Mandatory and you will not be able to get online with your PS3 until you install this update.
Make sure if you want any of the following things done to your PS3 to do it before installing this update.
This Update can make your Blu-Ray Drive not function and stop Netflix streaming.
Also Remove any discs before doing any Update from Sony!
And if you going to upgrade your HDD do it before you preform this update.
I hope this info is helpful...I only wish I had done the internet research BEFORE I INSTALLED THIS #$@^#*#^! UPDATE!
Sony needs to change there Slogan from..."It does everything" to "It does Less"