Help please "My Memory Stick!"

Please help .... My psp won't read any MemoryStickProDuo card :?
It was fine for weeks ... After I bought a new one , I put some music and video on it . I insert it in the psp "nothing happened" just the orange color light is blinking :?

Then I used my old one ... the same problem is happening :? "not reading"

Please help..

A TECHNICIAN ? I didn't let it fall from my hand :? It is completley NEW! today is the second week for it ..
My DS crashed from my car while on the highway and it still works fine !
Is PSP made that cheap!

im not 100% sure this work but try it just incase , turn your psp on go to system settings in the settings tab then go to format mem stick, get back to us ti see if it works

I have 2 MSs . 2 Gigabytes and a 4 Gigabytes ... Both SONY :?