Foobar2000 is an advanced audio player for the Windows platform. Some of the basic features include ReplayGain support, low memory footprint and native support for several popular audio formats.

Source : Foobar2000 homepage

Download : Foobar2000 download page

fb2k v0.7.6 changelog :
- fixed potential rare multithread safety issue in the core
- fixed problem with APE input skipping last samples
- added "masstagger/copy tags" rightclick
- rewritten MP4 support, integrated with standard inputs, now also supports MP3 files wrapped into MP4 container
- AAC decoder moved to standard inputs
- fixed bugs in MPC seeking, MPC+CUE much faster now
- added proper tab navigation in preferences, thanks to foosion for pointing how to do that
- new component for converting MP4MP3/AAC