Winamp Pro supports a wide variety of contemporary and specialized music file formats, including MIDI, MOD, MPEG-1 audio layers 1 and 2, AAC, M4A, FLAC, WAV, OGG Vorbis, and Windows Media Audio.

It supports gapless playback for MP3 and AAC, and Replay Gain for volume leveling across tracks. In addition, Winamp can play and import music from audio CDs, optionally with CD-Text, and can also burn music to CDs. Winamp supports playback of Windows Media Video and Nullsoft Streaming Video, as well as most of the video formats supported by Windows Media Player. 5.1 Surround sound is supported where formats and decoders allow.

Winamp supports many types of streaming media: Internet radio, Internet telelvision, XM Satellite Radio, AOL video, Singingfish content, podcasts, and RSS media feeds. It also has extendable support for portable media players, and users can access their media libraries anywhere via internet connections.

You can extend Winamp's functionality through the use of plug-ins, which are available on the Winamp site.

What is New in Winamp 5.64?
* Wireless desktop sync with Winamp for Android™
* iTunes Library Import
* Major podcast overhaul including new directory powered by Mediafly
* New Windows 8 support
* Available in 16 languages including Russian, French, German and Polish
* Improved playlist generator
* Add the Winamp Toolbar and control playback from your browser (optional)

Why Go Pro?
* Native video support including the most popular file formats for H.264 encoded video
* Unrestricted Audio CD Burning & Ripping up to 48x
* MP3 Encoding - the industry leading format
* High Quality Bitrate AACPlus Encoding (twice the quality of the free version)
* Help fund continued product development & innovation

As always Winamp and Winamp Pro also feature...
* Now Playing: Artist Songs, Videos, Radio and Photos
* iPod Support: Play and manage music on your iPod
* AOL Radio Online Service Powered by CBS Radio
* Album Art: Retrieve and view Album Art
* Winamp OrglerTM lets you track, chart and share your Winamp listening history
* Extended Flash video support
* Auto-Tag: Automatically update your song information
* Replay Gain: Play all your songs at a consistent volume level
* Format Converter: Transcode music to a more friendly format

NOTE
1. Settings and playlists created in portable folder (Data\Winamp).
2. Settings of installed Winamp should be preserved

Winamp 5.65 - 24 Jul 2013
* Improved: Memory allocation optimizations & fixes
* Improved: [ml_playlists] Show currently playing song
* Fixed: Some radio streams no longer playing as a result of the Icecast fix in 5.64
* Fixed: Crash when pasting artwork into File Info dialog in 5.64
* Fixed: [in_mp3] PIC frame rendering in ID3v2.2 tags
* Fixed: [gen_ml] Enter key not working correctly for ml views
* Fixed: [ml_local] Sporadic crashes when importing library in 5.64
* Fixed: [ml_plg] Broken 'View tracks similar to' menu item in main window songticker
* Fixed: [npwachk] Winamp Detector plugin not working with latest Firefox
* Fixed: [wasabi] Quirks with color theme list handling
* Misc: More general tweaks, improvements, fixes and optimizations
* Updated: [enc_fhgaac] Fraunhofer AAC Encoder v3.02.15
* Updated: [png] libpng v1.5.17
* Updated: [gen_jumpex] JTFE v1.2.7