Where are my plugins saved?

I just Installed Ubuntu 9.04. I needed to download plugins for Rythmbox and Totem move player, so i did. Now i want to know where are those plugins saved, and if i find them will i be able to copy them to disc/flash and use them next time i install Ubuntu? My net is limited so i can't download them any time i want.

In Windows, plug-ins are stored directly in the program's folder. and in some cases under Documents and settings"> , "user "> "application data".

This is a wild guess, not to be taken as fact, but I think I'd start looking for the same type file locations in Linux. As I said, just a guess, nothing more.

i found it thx for helping. They are stored in usr/share/doc folder.