I have a question about Sony Memory sticks. My wife is getting a Sony DSC-T1 Digital Camera for Christmas. This camera takes Memory Stick Duo Media (comes with 32mb stick). I'm looking to buy another stick (256mb or 512mb) so that she can take lots of pics. I'm a little confused on the media. Sony Memory Stick - this is what I have in my Sony DCR TRV-320 Digital Video Camera (for taking still pics).....so I know this is an older format and the actual physical size of the stick is bigger than the new ones -Sony Memory Stick Magic Gate - ?????? -Sony Memory Stick Select - ?????? -Sony Memory Stick Pro - ?????? -Sony Memory Stick Duo - smaller physical size and this is what my wifes new camera comes with -Sony Memory Stick Pro Duo - ???? -Sony Memory Stick Pro Duo High Speed - ??? I understand that I can use the bottom 3 of these in her camera. But what is the difference? It comes with Memory Stick Duo.......what advantage would 'Pro Duo' give or 'Pro Duo High Speed' give? Would either of these provide advantages in processing the pictures quicker so that more pictures can be taken in a short amount of time. Thanks for any help!