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Below are some of Audio players available freely over the internet

For video player scroll down.

MP3 Tunes
MP3 Tunes is a dual mp3 player, that includes features like Pitch, Cue, Equalizer, Database, Playlists (multiple formats supported), ID3v1 v2 tagging, jingle list and more. It supports up to soundcards and offers automatic mixing, cross-fader, password protection, pre-listening, file browser and much more. You can even place your own logo inside the interface, file browser and much more. A great player for amateur DJs or MP3 enthusiasts. We liked the optional Broadcast skin a lot better than the default option
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ZAP Audio Player
ZAP Audio Player ia a media player that allows you to play: mp3, mp2, mp1, ogg, wav. MOD music: xm, it, s3m, mod, mtm, umx, and MO3 music (mp3/ogg compressed MODs). In addition it comes with CD playback functions, 10 bands equalizer + chorus, reverb, flanger, echo, sound rotation and supports Winamp “m3u” play list files. The player takes advantage of DirectSound and DirectSound3D hardware accelerated drivers, as well as MMX CPUs. However it will happily run even without these performance enhancers.
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WinAMP
A popular, fast, flexible high-fidelity music player for Windows. Winamp support MP3 and MP2 audio with it s native Nitrane high-performance decoder as well as CD-audio, MOD, S3M, IT, XM and even SID audio formats. Winamp supports more than 10000 interface skins , 300 visualization plug-ins and CDDB for automatic CD audio title listing. You should pay attention during the install, as WinAmp will install several promotional icons (AOl, eMusic), unless they are unchecked from the list during installation.
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STP (SysTrayPlay)
STP (SysTrayPlay) is a small MP3 player that runs at the system tray. It does not come with fancy graphical effects offers a variety of very useful and convenient features that are quickly accessible from it`s tray icon. You can browse your playlist right from the tray menu and select a track to be played, scan your drive for MP3s, shuffle, repeat etc. as well as the option to define an action to perform once the album has finished playing. Additional features include CDDB support, an equalizer, a simple playlist editor and several advanced option. STP MP3 player takes minimal space and processor time. A very lean and but quiet powerful MP3 player, give it a try!
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Below are some free video player software available in the internet
AVS DVD Player
AVS DVD Player is a basic DVD and media player that offers all the standard options as well as some additional features. Unlike most other free DVD players, AVS DVD Player includes a DVD codec and does not require any additional DVD software in order to watch DVD movies. In addition to DVD movies, the program also supports .mp3, .ogg, Quicktime, VideoCD, Windows Media and many other audio and video formats. Additional features include video snapshots, customizable aspect ratio for high quality video, audio visualizations, playlists (.pls or .m3u), interface skins and more.
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FLV Player
Any FLV Player enables you to play and publish Flash video files (.FLV). The program cannot only be used to view downloaded .FLV files, but also to publish them to your website or blog, complete with an integrated player that can be customized to match your color scheme. The program generates the complete HTML output with a preview page and the code to be copied and pasted into your page. Other features include FLV meta data injection, drag and drop support and customizable publishing options.
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View Box Player
View Box Player is a multimedia interface that provides access to content from YouTube, last.fm, music videos and local weather information. You can perform keyword searches on YouTube and view the videos with the integrated player, or in your browser. The program provides tabs that allow you to quickly switch between content, and you can choose to position the player along the left or right side of your screen, leaving desktop space for other applications.
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XVid
XVid is a video player for avi (DivX), mpeg, asf and other formats. It supports zooming and fullscreen viewing, subtitles (transparent and framed), playlist and extended support for keyboard operation. XVid;-) comes with a simple, easy to read interface and additional skins to chose from.
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Ace DivX Player
Ace DivX Player is a simple media player, that can play movie and music in formats including DivX, AVI, MPEG, WMV, ASF, MP3, CD and Video-CD. It comes with a playlist option, a freely resizable movie window and optional full-screen playback, drag and drop support and more. The program can auto-play CDs and VCDs and offers some additional options as well.
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