How to choose Sony PSP in Malaysia

Here a link to complete Sony PSP history :
http://en.wikipedia.org/wiki/PlayStation_Portable

So which one is for me ?

For Malaysian people it is very important their psp can play iso/cso or download games means errr...playing games from memory card.

If you are 12 yrs and above :
Any psp is suitable for you but make sure your psp has firmware 5.00 M33-6 or 5.50 GenD3 (full crack)or
5.03MHU(chicken set - Full modded)

If you are 12 yrs below :
Chose fully crack only firmware 5.00 M33-6 or 5.50GenD3 (full crack)

What is full crack and full modded model?

Read full description here : http://forums.pspslimhacks.com/user-help/121-psp-hackable-allow-me-answer.html

So in summary which Model is full crack?
All psp 1000 and psp 2000 before April 2008 is full hack.

Model full modded ?
All psp 3000 and psp 2000 manufactured after April 2008 and has firmware 5.03 installed.

How to check Firm ware?
In XMB menu, go to setting->system setting->system information.

What is the different between full-modded and full hack?
Full hack will not lose its firmware when the power is completely off i.e pull out the battery because the firmware is write in psp bios.

Full modded will lose its crack firmware when the battery is pulled out or drain out because its write on psp ram. Sony somewhat has able to install hardware to detected costume firmware and will refuse to write it into psp bios.