The most POPULAR stream recording software (free download):

• WM RECORDER
  the easiest audio/video stream ripper
• REPLAY CAPTURE SUITE
  the best audio/video stream recording/capturing bundle
• REPLAY MUSIC
  the best streaming music recorder

Other RECOMMENDED software and services:

• REPLAY MEDIA GUIDE
  free service to find and record online radio, Internet TV, podcasts
• AVS VIDEO TOOLS
  convert, split, join, remove commercials, edit, rotate, apply effects, capture, transfer, copy, rip and burn DVD and video files
• EMUSIC
  the best legal music download service
• AUDIBLE
  download audio books, audio magazines, newspapers, radio programs
• SOUNDTAXI
  remove DRM protection from Windows Media, iTunes music and video files

How to make a Recorded ASF File Seekable

The best way to get seekable Windows Media files is to use automatical indexing of stream recorders

• WM Recorder and GetASFStream make Windows Media files seekable in Seekable mode (see the settings of the corresponding software).
• HiDownload, SDP Receiver and Download Studio automatically index Windows Media files.

• Use Reprocess function of WM recorder to reprocess the file with the Seekable option disabled.
• Use Make ASF index function of Net Transport after downloading a stream with this or other recorder.

See also Fix broken Windows Media File for the list of other software capable of repairing Windows Media Files as well as making ASF seekable.