Most should work, but it's not guaranteed.
I've noticed that not all connector cables work for all versions of the iPod.
When sharing music with my friends, some of their "newer" iPods would not work on the cable I had, and their cable didn't work on mine.
Ended up freezing the computer, but then again it runs windows.
And no I'm not switching to a Mac because of their lack of games.
Yes, I am a nerd. Proud of it.