If you want a free advance audio player for Windows platform 'foobar2000' is available for you. Some basic features include full univode support, ReplayGain support and native support for several popular audio formats
Main features
Supported audio formats: MP3, MP4, AAC, CD Audio, WMA, Vorbis, FLAC, WavPack, WAV, AIFF, Musepack, Speex, AU, SND... and more with additional components.
Gapless playback.
Full unicode support.
Easily customizable...
