Developing multimedia applications with  JMF         T.G.Venkatesh      
20
  MediaLocator and URL
•URL - Uniform Resource Locator
•MediaLocator  locates a media source
•MediaLocator and URL can be constructed using LocatorString.
•Examples for Locator String
Øfile://ring.wav
Øjavasound://44100, vfw://0
Ørtp://144.16.251.120:9000/audio/1
Øhttp:// www.mywebsite.com/clip.mov
Ørtsp:// host:port/mediafile
•Unlike an URL or a MediaLocator  a DataSource  provides control over media access.