Command-Line Options

I’ve been trying to find a list of command-line options for common media players (winamp, windows media player, real player, quicktime). Unfortunately, my search is not going well. I’ve tried all of the standard command-line arguments that usually list the options, and nothing is showing up. Is it possible that they really don’t support command-line options? It’s hard for me to believe, but it might just be true. Sad.