Winamp supports a wide variety of contemporary & specialized music file formats, including MOD, MIDI, MPEG-1 audio layers 1 & 2, M4A, AAC, FLAC, OGG Vorbis, WAV, & Windows Media Audio. It supports gapless playback for MP3 &7 AAC, & Replay Gain for volume leveling across tracks. In addition, Winamp can play & import music from audio CDs, optionally with CD-Text, & can also burn music to CDs. Winamp supports playback of Windows Media Video & 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, & users can access their media libraries anywhere via internet connections.