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

• Napster - listen to CD-quality music without ads, download an unlimited number of tracks to your PC and MP3 player (Napster To Go only), create custom playlists, get personalized recommendations and more! Subscribe and access downloaded and transferred tracks for as long as you continue to subscribe for just $12.95/month, or $14.95/month for Napster To Go. All subscribers get a 7-day free trial (Napster Subscription or Napster To Go) with unlimited access to 2 Million+ songs, and can cancel at an

• iTunes - the largest and the most diverse legal music download service: Over 3,5 million tracks from all 5 major labels and more than 600 independents for only $0.99 a song.
  
  iTunes Music Store has virtually every category of music to choose from. And whatever your tastes in music — Rock, Jazz, Blues, Pop, Latin, New Age, Folk, Inspirational, Country, Dance, R&B and Soul, Hip Hop and Rap, Reggae, Electronic, Vocal, Alternative, Classical or something in between — chances are you'll find the tunes you're looking for. With a vast catalog of music from all five U.S. major labels and agreements with 200 independent labels, the iTunes Music Store catalog of songs is growing every week.
  
  iTunes uses MPEG-4 audio (AAC) which is better than mp3.
  
  iTunes Music Store is available for Windows and Mac.
  
  iTunes offers FREE 30-second previews of all songs and FREE download of a Single of the Week.

• Rhapsody - is an award-winning digital music subscription service.
  Simple, reliable and legal, RealOne Rhapsody gives you unlimited access to the deepest catalog of legal online music in the world. Listen to 5,000,000+ songs from 80,000+ artists on demand. Create custom playlists and radio stations. Burn mixed CDs or only $0.79/song. Play over 75 professionally-programmed radio stations and skip songs you don't like. Access your account from any PC.
  
  Rhapsody offers the largest music selection from four of the five major record labels with access to the hottest artists from BMG, Sony Music Entertainment, EMI Recorded Music and Warner Music Group.
  Rhapsody provides a deep and personalized music experience with an extensive catalog from multiple labels, across many genres including artists Christina Aguilera, Linkin Park, Jennifer Lopez, Jay-Z, Lauryn Hill, Prince and classic artists Bruce Springsteen and Simon and Garfunkel.
  
  All purchased downloads are 192kbps DRM protected WMA files.
  
  14 day FREE trial gives you unlimited listening access to 5,000,000+ songs from 80,000+ artists!

See also: How to Record music from streaming jukebox services Napster, MusicMatch, Yahoo Launch Cast, Rhapsody, iTunes, etc.

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