is it work?

i have a question in mind disturbing me:confused:

when we take a backup using mm is it work 100% or anything required

and i see some games installed in my hdd of ps3 showing ps3 update file
[games not installed by me]

when we take backup is that [ps3 file update] updating our system when we run game or it is not

or if i delete that file [ps3 update file] [games work or not]
my system info fw 3.55 mm 2.7

please guide me to so i take backup of my uncharted series [i have original bluray discs not any downloaded or copied discs]

with regards
garry here