audio

i have a book on a cd. How do i copy it into my sansa clip?

also, what is a podcast and how do i get it on to my clip?

You need an application like MediaMonkey.

Go to menu option Tools -> Rip audio CD

Click the Settings button below “Format: MP3”  

For audio books you could use a preset like “Voice: ABR 56k mono”.

If you want stereo(assuming the audiobook really is stereo)choose “Use Manual Settings” and then ABR mode and 64 kbps which is enough for almost any audiobook(except ones with music which could benefit from higher bitrates) 

http://en.wikipedia.org/wiki/Podcasts