title: iPhone SDK:Saving a streamed audio file to Documents folder
body: <p>I want to save an audio file to the Documents folder of my application while one of the classes in my app is streaming it. How can I do this?</p>
  
  <p>Is it possible to save the streamed audio directly to an mp3? (if the audio file being streamed is an mp3 or I have to use caf?)</p>
  
  <p>Thanks.</p>
  
  <p><i>
  Edit: What if I am running the save in another thread and the user exits the application? I know an app cannot run in the background in an iPhone, but is there any way I can stop the download and remove the partially saved file when the user exits the app? Can I get an exit signal inside a class or in a delegate for NSURLConnection?
  </i></p>