The smallest Group Test product was the MSX-256 Memory Stick PRO. It comes in a small, neat, case. The documentation was not very helpful and, had we not used this type of hardware before, we may have become stuck, because the case itself was not that easy to open. Apart from this minor setback Memory Stick compatible hardware is also required, whether using a laptop, PC, digital mobile phone or digital camera. That said, a PC card adapter or a USB reader/writer is all that is needed for laptop use and, given the protection that is afforded, it's a small price to pay.