How can I send a Cd , by Email, cant figure it out! Help?

Is it possible to send an album threw an email,or is it impossible? Or like a a couple of songs? Can anyone help? If so please explain how. Thankyou!
Update: Mundor,can you explain that 4 me a little more if you could?
Update 2: All my Cd's are ripped already!
Update 3: How do you Zip a song,this is all new to me?
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