The most POPULAR stream recording software (free download):

• REPLAY MEDIA CATCHER
  the best audio/video stream ripper. Supports the most popular flash video format (RTMP and HTTP).
• REPLAY CAPTURE SUITE
  the best audio/video stream recording/capturing bundle
• REPLAY MUSIC
  the best streaming music recorder
• WM RECORDER
  the best Windows Media, Real Audio/Video stream capture software

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

• Replay A/V ^{Editor's choice} (Shareware - $49.90/Windows) - allows you to record almost any streaming audio and video instantaneously, or schedule recordings to happen automatically later. All the popular formats are supported, including:
  • Nullsoft video streams (AOL .NSV videos);
  • iTunes radio stations (Shoutcast compatible MP3 http streams. You can split and tag mp3 files automatically);
  • Windows Media audio and video streams (HTTP, MMS, RTSP);
  • Real Audio and Real Video streams (HTTP, RTSP);
  • QuickTime (HTTP);
  • Sirius and XM Online radio;
  • Flash Video (HTTP / .FLV);
  • Flash (HTTP / .SWF);

• Streamripper Winamp plugin and console versions ^{Editor's choice} (Free/Windows, Unix) - You can use it to rip (copy) streams of the following kinds:
  • .mp3 Shoutcast streams - the kind of streams found on shoutcast.com.
  • .mp3 Icecast streams - a GNU GPL/Open Source version of Shoutcast. Both Icecast 1.x and Icecast 2.x are supported. However, UDP metadata is not supported for Icecast 1.x.
  • .nsv (Nullsoft Streaming Video) streams - which Winamp TV uses.
  • .aac Shoutcast/Icecast streams - the kind of streams found on tuner2.com. NOTE: Streamripper can't rip RealAudio AAC streams, only shoutcast/icecast AAC.
  • .ogg streams - these streams are found at dir.xiph.org.
• MetaProducts Offline Explorer Pro (OEP) 4.7 (Shareware - $70/Windows) is an offline browser that supports streaming media recording through the HTTP, MMS, RTSP, PNM protocols. It can also download .NSV and .NSA files from Ultravox servers. Supported operating systems: Windows 98/me/NT4.0/2000/XP. The free trial period is 30 days.
  Download Offline Explorer Pro (3 Mb)
  Buy Offline Explorer Pro at eSellerate for USD $70

• RadioRipper 1.x (Free/Windows) - stream ripper that can record streaming IceCast/SHOUTcast mp3 and AAC streams (web radio stations), .NSV Nullsoft Video streams from Winamp broadcasted through HTTP or UNSV protocol.
  Main features:
  • IceCast/SHOUTcast MP3 and AAC support
  • ID3 tagging and Smart file naming
  • Nullsoft Video support (NSV)
  • Ultravox server support (unsv://)
  • Lossless network capture
  • Winamp 2.x/5.x integration
  • Playlist generation
  • Realtime playback
  • Track filtering
  • Relay server
  • HTTP authentication
  • Memory recording (RadioRipper now always records whatever you are listening to, and automatically cleans up anything you don't tell it to record at a later time).
  
  Requirements: Microsoft .NET Framework 1.1, Windows NT/2000/XP

  

• NSVRecorder 1.x (Shareware - $17.50/Windows) - stream ripper that can record streaming Video or Audio (NSV or NSA) content from Winamp broadcasted through HTTP or UNSV protocol (such as AOL Music). Multiple URLs can be recorded simultaneously. Your recordings will be saved as .NSV and .NSA files on your PC that can be watched anytime with Winamp even without an Internet connection.
  Platform: Windows 9x/ME/2K/XP
  The free trial period is 30 days.
  Download NSVRecorder
  Buy NSVRecorder at RegNow for US $17.50.

• CoolBeans 1.0 d (Freeware/Windows)
  CoolBeans is a command line utility that can download .NSV (Nullsoft video) and .NSA (NullSoft Audio) from Ultravox UNSV:// servers.
  Platform: Windows
  NSV Loader v0.1 - A free Batch Downloading Frontend for CoolBeans NSV downloader. You only have to add a bunch of URL's to a textfile and then doubleklick on a Icon. It will automaticly download all the NSV Files in the list.