If you don’t like the sony supplied icon, the below and then rebuild your shell icon cache (use tweak ui or similar). Should be the same for vista too.
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\AutoplayHandlers\DeviceGroups\MemoryStick]
“Icons”=“C:\\Path\\Icon.ico,0”
“Label”=“Memory Stick”
“NoSoftEject”=dword:00000001
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\AutoplayHandlers\DeviceGroups\MemoryStick-MG]
“Icons”=“C:\\Path\\Icon.ico,0”
“Label”=“Memory Stick - MG”
“NoSoftEject”=dword:00000001