ps3 memory card?

If my built in ps3 memory card fills up, can i just go buy an external memory card?

basically what the guy above me said. its a hard drive, not an internal memory card...

if you fill it up, you can buy another one (2.5" hard drive) and switch em. or, you could buy an external hard drive and use it... or even a memory stick, usb flash drive, SD card, and some others. as you can see, theres a lot of options (unlike the 360 hehe... i have a 360 too so dont call be a troll :p)