My experience on PSP Street White E1008

[TkSilver]

It shouldn't damage the card..... if the psp street has a spring lock for the memory card that can get worn out.

Before you can do some homebrew (some is officially signed since the keys got hacked) you will need to install custom firmware (cfw) on your psp. As an added benefit though you will also get access to cwcheats on your psp as well which is always nice to have.

Also as far as memory cards go music will be fine (in reasonable numbers) on most MS pro duo cards except for the smallest sizes. Most homebrew wil be fine on 512MB cards (or larger). Videos are best left for 1GB cards or larger (if you planning on a movie or more then 1 or 2 30 min episodes). And PSP iso files backed up from your UMDa (for easier portability) xan be anywhere from less then 100MB to really pushing close to 2GB (well 1.8GB disk size maybe a little bigger if patched with a fan patch) and honestly if you include system files and savegames really a 4GB card or larger is recomended for native PSP games.

Or you could get a microSD to MS pro duo adapter and save a lot of hassle.