I need help/info re: Memory Stick for my digital camera [View All]

Hello!

I have a Sony Cybershot digial camera and right now we have a 16meg memory stick. We're getting ready to go on vacation and want to get a larger memory stick, but I'm facing confusion over the difference between a Memory Stick and a Memory Stick Pro

In the manual, under the section about "Memory Stick", it has all this junk about there being a Memory Stick and a MagicGate Memory Stick, and "because your camera does not support the MagicGate standards, data recorded with your camera is not subject to MagicGate copyright protection"
???

Then it says "The camera cannot record or play back the data needed by the MagicGate function. We cannot ensure all the functions of each Memory Stick"

Okay---

Here are my questions

1) What the hell is MagicGate and how does this apply to me
2) Would a MemoryStick Pro still work for my camera since I don't know what MagicGate is or how it applies to me?

and

3) Is it better to buy a Sony-brand memory stick or do the generic ones have a good success rate?

Thanks!