PSP Memory Cards

So, I finally did it. I went out to the store and bought myself a Lexar Pro Duo 4G. I didn't trust getting them online after all.
I already feel closer to my psp.
Once the lazyness wears off, I'm sure I'll put in some music and movies (and after I research HOW).
I already copied my main save game from Tales Of Eternia, I think I'll leave the rest where it is.
My friend, who works at the store, said they were reliable and since the store doesn't sell any generic brands, I believe him.

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Questions:
- So, anyone have any experiences with LEXAR brand cards?
- Any suggestions on what to do now, except get games?
- Should I format the card first? Because I didn't.
- Is it completely necessary to update to the latest firmware and is there a possibility to upgrade automatically?
- Any tips and suggestions welcome.

DISCUSS :D.

Questions:
- So, anyone have any experiences with LEXAR brand cards?

I'm using a sandisk so can't help you here.
- Any suggestions on what to do now, except get games?

Put some songs and maybe some podcasts that you like on it, I have the hotspot on mine right now.
- Should I format the card first? Because I didn't.

I didn't either :P
- Is it completely necessary to update to the latest firmware and is there a possibility to upgrade automatically?

I would because that will let you download demos off the PSN and it takes only 20 mins.
- Any tips and suggestions welcome.
Just mess around with it till you find something new.

i have a sandisk 1 gband a sony 8 gb but im sure they all work the same

i personally recommend buying Memory sticks from stores like Gamecrazy USED. I bought a 4gb and an 8gb from them for $20 each. work perfectly fine, didnt reformat them or anything. memory stick = memorystick as far as i know.

SanDisk Ultra II 8GB for $30 + Free S&H on Newegg.

http://www.newegg.com/Product/Product.aspx?Item=N82E16820171352