Hello. i'm actually DREAMING on creating my own online radio without using other services like shoutcast, etc. I have already done my design and main markups on the site. But my problem is, how do i deliver my music to the website? what kind of technology should i be using ? . :)
The Best I can think of would be to use flash player like BBC IPlayer does for there radio stations, but you can also do it with javascript and microsoft silverlight.
Playlist Format? What sort or radio site are you making? If your just playing lists of different songs then use xml. Flash will stream your music, there are hundreds of tutorials out there that build music players. If the site is going to get a lot of views then use amazon s3 servers to host your files, it will be cheaper than storing them on your own server.
We used LiquidCompass, though.