foobar2000 is an advanced freeware audio player for the Windows platform. Some of the basic features include full unicode support, ReplayGain support and native support for several popular audio formats.
Update: Now at beta 4. The short-lived beta 3 had a major stability problem that should be fixed now - special thanks to the 15 people who submitted crash reports so quickly.
Download: foobar2000 1.1.11 Beta 4 | (3.2 MB) Freeware
Screenshots: >>Click Here
Home Page: Foobar 2000