Nullsoft Winamp is a fast, flexible, high-fidelity media player for Windows. Winamp supports playback of many audio (MP3, OGG, AAC, WAV, MOD, XM, S3M, IT, MIDI, etc) and video types (AVI, ASF, MPEG, NSV), custom appearances called skins (supporting both classic Winamp 1.x/2.x skins and Winamp 3 freeform skins), audio visualization and audio effect plug-ins (including two industry dominating visualization plug-ins), an advanced media library, Internet radio and TV support, CD ripping, and CD burning.
• The Full version plays MP3s, AAC, WMA, and more; Compatible with Winamp 2 Plug-ins; Full Support for classic and modern skins; Plays Videos; has a Powerful Media Library; Browse Internet Radio & TV Stations; Integrated Internet Music Videos & Songs; Bundled Visualizations; and Burn & Rip CDs.
• The LITE version plays MP3s, AAC, WMA, and more. It is compatible with Winamp 2 Plug-ins and has full support for classic skins.

Winamp Highlights:
• New portable device features - transcoding, new sync options, USB thumbdrive player support, video sync, direct-from-device playback
• Faster ripping
• Improved AAC and aacPlus encoding
• Unicode metadata, filename, and title support
• iTunes-compatible gapless playback (MP3/M4A) and encoding (M4A)
• Optional 24bit playback
• ReplayGain support

Winamp Player Features:
- Plays Music and Video Files (aacPlus, MP3, AAC, WMA and more!)
- Compatible with Winamp 2 Plug-ins
- Full Support for Classic and Modern Skins
- Plays Videos (NSV, WMV, and more!)
- Powerful Media Library
- Browse SHOUTcast Radio & TV Stations
- Browse Winamp Music Videos & Songs
- Integrated AOL Video Content (News, Sports, Movies & more)
- AOL Radio Featuring XM
- SHOUTcast Wire (podcast directory)
- Predixis MusicMagic (dynamic playlisting)
- Bundled Visualizations
- Burn CDs (Limited to 2x - 48x in Pro!)
- Rips CDs (Limited to 8x aacPlus, AAC, WMA - Unlimited aacPlus, AAC, WMA and MP3 in Pro!)
- 50 free mp3s from Emusic
- Includes Winner of the Internet
- Surround Music Project!
- Includes an MP3 of 'Mercy Me' by Alkaline Trio
- Rip/Encode music into aacPlus, AAC, WMA, or MP3!
- Burn CDs up to 48x!

Changes in Winamp 5.55:
• New: Turkish, Portuguese-BR & Romanian installer translations and language packs
• New: WBM system for lazy-loading of *.w5s files
• New: [Bento skin] Playlist tab (optional)
• New: [ml_impex] iTunes-compatible Media Library database import/export plugin
• Improved: [gen_ff] Faster & no flicker when loading/switching skins
• Improved: [gen_jumpex] New 'Add to Library' shell menu item & other tweaks
• Improved: [gen_jumpex] True unicode search support
• Improved: [gen_ml] Optional alternating row colors for list views
• Improved: [gen_ml] Optional skinned menus
• Improved: [in_mod] Experimental ExtendedRead support (transcoding, burning, etc)
• Improved: [in_mod] Now uses global Playback config for thread priority
• Improved: [in_mp3] APEv2 tag editing/creating tweaks
• Improved: [in_mp3] Show instantaneous bitrates for AAC VBR
• Improved: [ml_local] Media Library searches now ignore diacritics
• Improved: [ml_local] New 'Category' and 'Lossless' database fields
• Improved: [ml_local] New playcount Tracking Control options
• Improved: [ml_local] New 'Play/Enqueue random' item for top level filters
• Improved: [ml_online] New toolbar and various other tweaks & optimizations
• Improved: [ml_online] Support for 3rd-party Services
• Improved: [vis_milk2] Pixel Shader 2.0 & 3.0 support tweaks
• Improved: [vis_nsfs] Unicode title display for currently playing track
• Improved: [Winamp Agent] Localization support
• Improved: [Winamp Modern skin] New spectrum vis options
• Fixed: Accessibility fixup for Format Info string in Alt+3 dialog
• Fixed: Genre not being saved with Autotag feature in Alt+3 dialog
• Fixed: Memory leaks in in_mp3, in_wm, gen_dropbox, ml_local, ml_pmp & tagz.w5s
• Fixed: New version check can't be disabled when anon statistics is enabled
• Fixed: Rare crash when closing vis window
• Fixed: Various issues when starting/stopping/switching vis plugins
• Fixed: [Agent] Systray icon not showing if 'Play in Winamp' removed in Shell Options
• Fixed: [enc_flac] 24-bit FLAC encoding
• Fixed: [gen_jumpex] Shell Options, B Hotkey, Send To menus & other misc bugs
• Fixed: [gen_ml] Library button resize glitch
• Fixed: [in_cdda] Potential cddb Disc null pointer crash
• Fixed: [in_flac] Albumartist & Ensemble fields not cleared when deleting Album Artist
• Fixed: [in_flac] Track restarts when updating metadata
• Fixed: [in_mp3] Potential ID3v2.0/2.1 crash issue
• Fixed: [in_mp4] Empty genre metadata field (eg. when transcoding from flac to m4a)
• Fixed: [in_mp4] Long hangs on slow network drives
• Fixed: [libsndfile] AIFF buffer overflow vulnerabilty (thanks milw0rm/secunia)
• Fixed: [ml_disc] Potential crash on exit
• Fixed: [ml_disc] 'Use uppercase file extensions' ripping option not being respected
• Fixed: [ml_history] Tracking still updates if playback stopped before specified time
• Fixed: [ml_local] Broken 'Create Playlist' button functionality in local media
• Fixed: [ml_local] Remove missing files broken with some older/corrupt databases
• Fixed: [ml_wire] Columns sometimes hidden in Downloads view
• Fixed: [ml_plg] Multiple 'Failed to initialize' error messages
• Fixed: [ml_pmp] Crash when deleting playlists/files from a P4S portable device
• Fixed: [ml_pmp] Metadata hooking, transcoder, autofill and other bug fixes
• Fixed: [nde] Albums with % in title not displaying tracklist in local media views
• Fixed: [out_ds] Logarithmic volume control dB display glitch
• Fixed: [pmp_ipod] Deletion of non-existent files from database
• Fixed: [pmp_ipod] Reading of Play Count statistics
• Fixed: [pmp_ipod] Various database, albumart, playback & disconnection issues
• Misc: More miscellaneous general tweaks, improvements, fixes and optimizations
• Misc: New "Send Feedback" item in the Help menu
• Misc: Note that changes made to the ml database are not backwards compatible!
• Misc: Removed some older Milkdrop presets and added some newer ones
• Misc: Separated vlb.w5s and nsvdec_vp3.dll decoders from in_mp3 and in_nsv
• Misc: Separated timer from gen_ff into timer.w5s
• Updated: Gracenote CDDB/MusicID v2.6.0.6
• Updated: libpng 1.2.35
• Updated: Sonic Burning Engine v4.10.32.502
• Updated: [gen_jumpex] JTFE v1.0.4
• Updated: [in_mp3] Fraunhofer Decoder v4.3
• Updated: [lame_enc] LAME 3.98.2
• Updated: [vis_avs] AVS v2.82

Winamp 5.551
• Fixed: [libsndfile] CAF Processing Integer Overflow Vulnerability
• Updated: libsndfile 1.0.19
Homepage - http://www.winamp.com