What is the difference between MSPD and SDMSPD Memory Stick?

Memory Cards Mobile memory, professional cards and all other st
1

There are two products with the same name.  SanDisk Memory Stick PRO Duo Magicgate 2GB.  Products are: Model: MSPD2048A11 and Model: SDMSPD2048A11.  The second one has a " SD" on the front. What is the difference between the two?  I will be using the product for a digital camera.  Thanks!!

2

the second one is the sandisk part number for the card. SD stands for sandisk. the other looks like an incorrect part number. 

3

Thanks drlucky for your input…I would like to add the MSPD is priced ~$25 where the SD MSPD is priced ~$15.  So they are the same???

4

once again MSPD card is not a SanDisk part number. it is possible i suppose that it is a Sony part number but that i can only speculate on.