It depends, I have an adapter, (for Sony Memory Stick), where a driver needs to be loaded - which is no good in your case.
However, some don't require a driver, IIRC, one of the earlier Lexar Jumpdrive series took SD cards and appeared as a normal flash drive - this is the kind you need.
If you can find a decent computer store that will let you try, (or one with knowledgable staff), it would help.