The most common music media file type used to stream music is the MP3. Another popular music media type is the M4A.
If you have a music library that has music media types other than mP3 or M4A, you will have to convert them to MP3 or M4A using a media converter. Aimersoft Video Converter Ultimate. Why? Because it does it all. It converts all audio file types as well as all video types! You can even extract the audio from video files or movie files and save them to MP3 or to any audio file type. It is fast and easy to use.
I personally find MP3 files the best because they are easier to work with. For best results and to have a radio station that sounds great, MP3 files should be 128kbps bit rate and 44.1 kHz sample rate.