The most POPULAR stream recording software (free download):

• REPLAY CAPTURE SUITE
  the best audio/video stream recording/capturing bundle
• WM RECORDER BONUS BUNDLE
  the best video recording bundle
• REPLAY MEDIA CATCHER
  the best audio/video stream download/capture software. Supports the most popular flash video format (RTMP and HTTP).
• REPLAY MUSIC
  the best streaming music recorder
• RTMPDUMP
  freeware RTMP/RTMPE downloader
• TUBEDIGGER
  flash media RTMP/RTMPE download and capture software
• GETFLV
  flash video RTMP/RTMPE downloader
• WM RECORDER
  the best Windows Media, Real Audio/Video stream capture software
• REPLAY TELECORDER
  record audio/video calls from Skype
• REPLAY VIDEO CAPTURE
  record any video from screen

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

PNM protocol
If you receive errors when downloading Real Audio and Real Video streams with HiDownload and NetTransport like in the example below

Socket Error #10061, Connection refused by server
Error: Disconnect
Connecting host failed,10 second, reconnect
DNS failure. Error #11004

In this case follow the instructions describing protocol/port change or use alternative software like Mass Downloader.

Hint: Looking for an easy way to convert Youtube to MP3 or download YouTube Videos? Try Freecorder.