I need help with my mp3?

I just got a mp3 player but I have no idea how to put songs on it. I have itunes but can I use those songs to put on my mp3 or is that only for ipods? I need to know where I can get songs to put on my mp3 and how to put them on. This information would be greatly appreciated. Can I rip songs off my cd and put them on my mp3. I really need details on how to get this going so please someone help and please avoid confusing computer lingo. thanks a lot.