How to downlad a cd to my apple iphone 4s?

How do i downlad a cd to my apple iphone 4s?

As techie said

Easy, just use windows media player to rip to mp3, then add the mp3 songs to your itunes song list.

You can use iTunes to rip the CD to your iTunes library first, and then sync iPhone 4s with iTunes, the songs will be transferred to your iPhone. If you want to know how to convert video and put DVD movie on iPhone, I think this step by step guide would help you. Hope it helps. Contact me if you have any other question.