AIMP is a free audio player with support for large number of formats and playlists. It works with multiple playlists immediately, allows creation of bookmarks and also has a playback queue.
BSplayer is an application that plays back all kinds of media files (avi,mpg,asf,wmv,
mp3...) and specialises in video and DIVX playback.
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.
iTunes is a free application for Mac and PC. It plays all your digital music and video. It syncs content to your iPod, iPhone, and Apple TV. And it's an entertainment superstore that stays open 24/7.
JetAudio is integrated multimedia software made up of a single compact rack. Not only does it play various music and video files, it also has features such as CD burning, recording, and conversion to other file formats.