Audio:
1. Foobar2000 - audio player

http://www.foobar2000.com/

2. WinAmp - audio player

http://www.winamp.com/

2.1 AIMP - audio player

http://aimp.ru/index.php

2.2 iTunes - audio player

http://www.apple.com/itunes/download

2.3 Songbird - open-source customizable music player

http://getsongbird.com/

3. 1by1 - audio player

http://www.mpesch3.de/

4. JetAudio - audio player

http://www.jetaudio.com/

5. XMPlay - audio player

http://support.xmplay.com/

6. Xion - audio player

http://xion.r2.com.au/

7. Apollo - audio player

http://koti.welho.com/hylinen/apollo/

8. MediaMonkey - music organizer

http://www.mediamonkey.com/

9. The GodFather - music organizer

http://users.otenet.gr/~jtcliper/tgf/

10. dBpowerAMP - audio converter

http://www.dbpoweramp.com/

11. Audacity - audio converter

http://audacity.sourceforge.net/[/url]

12. WavePad - audio converter

http://www.nch.com.au/wavepad/index.html[/url]

13. Kristal Audio Engine - audio editor

http://www.kreatives.org/kristal/[/url]

14. Exact Audio Copy - CD ripper

http://www.exactaudiocopy.de/[/url]

15. Audiograbber - CD ripper

http://www.audiograbber.com-us.net/[/url]

16. CDex - CD ripper

http://sourceforge.net/projects/cdexos/[/url]

17. Mp3 Tag Tools - tag editor

http://massid3lib.sourceforge.net/[/url]

18. Mp3tag - tag editor

http://www.mp3tag.de/en/[/url]

19. Taggin’ MP3 - tag editor

http://lazorsoftware.com/[/url]

20. Monkey's Audio - APE compressor/decompressor

http://www.monkeysaudio.com/[/url]

21. mpTrim - mp3 editor

Video:
1. Windows Media Player - audio/video player

http://windows.microsoft.com/en-US/windows/products/windows-media-player

2. VLC - video player

http://www.videolan.org/

3. Media Player Classic - video player

http://sourceforge.net/projects/guliverkli/

4. MV2Player - video player

http://mv2.czweb.org/

5. CrystalPlayer 1.95 - video player

http://www.crystalplayer.com/

6. Zoom Player - video player

http://www.inmatrix.com/

7. GOM Player - video player

http://www.gomplayer.com/

7. KMPlayer - video player

http://kmplayer.en.softonic.com/

8. viPlay - video player

http://www.urusoft.net/products.php?lang=1

9. DSPlayer - video player

http://dsplayer.de/dspweb/

9.1 Splayer - simple video player

http://www.splayer.org/index.en.html
10. VirtualDub - video editor

http://www.virtualdub.org/

10.1 Avidemux - video editor

http://avidemux.sourceforge.net/

11. CamStudio - video screen recording

http://www.camstudio.org/

12. AviSplit - Avi splitter

http://www.bobyte.com/AviSplit/

13. Video mp3 Extractor - rip audio from video files

http://www.geovid.com/Video_mp3_Extractor/

14. Free iPod Converter - convert all popular video formats to iPod video

http://www.ipod-video-converter.org/

15. MediaPortal - turning your PCinto a Media Center

http://www.team-mediaportal.com/

16. The FilmMachine

http://members.home.nl/thefilmmachine/

http://www.mptrim.com/

22. WavTrim - wave editor

http://www.mptrim.com/WavTrim.html

23. EncSpot Basic - analyse mp3 files

http://www.guerillasoft.co.uk/encspot/