umm...google to the rescue?
Well if you can't remember the email you used but if you can remember all your emails go to your inbox on yahoo or hotmail what ever you used and it will have an email from the psn thanking you for joining and that will be the email.
he probably deleted that a while ago.
there might be some kind of recovery thing.
if the PS3 has a system like XBox Live, you should be able to enter your PS3 username and it sends an email with your details.
then you just check each of your different email accounts for mail from the recovery thingy.
whichever one gets it, will be the one that you used as your sign in.
theres a lesson to be learned here.
Don't use auto-sign-in unless you know what it's signing in with.
Ohh, Im haveing the same problem.. My PS3. will not read my disks.. And it fuck's up D>
wait, i was looking around the internet and i found the perfect solution!
Get a 360.
PLEASE TELL ME HOW TO DO THAT PLEASEE!?!
It won't even let me logg in to online ps3
Gosh damet that will take 4hrs and 35 minutes
Did your's like not show your "game" and showed stupid stuff.