From their site:
WM Recorder 12.1 is the easiest, most powerful way to record millions of video and audio files from the internet. Just open WM Recorder, play your video or audio, and it’s saved automatically.
Record the Most Formats and Protocols
With WM Recorder 12.1’s new ability to capture Flash Video, no other package can record everything WM Recorder does. All the popular streaming formats are supported:
Flash Video (HTTP and RTMP)
Windows Media™ (HTTP, MMS and RTSP)
Windows Media™ DRM (plays according to DRM restrictions)
Real Audio™ and Real Video™ (HTTP and RTSP)
MPEG
QuickTime™
Streaming MP3 (Shoutcast™)