Miniature, jet, minimalistic Evil Player - a real find for such a Zen-geek like me. It is so primitive and simple as well and easy to use - as they say in the joke, for those who go, not checkered. Player understands WAV, OGG, MP1, MP2, MP3, and all popular formats tracker music (MOD, XM, IT, S3M, MTM, UMX, MO3), as well as know how to listen to Radio streaming (SHOUTcast / ICEcast / ICEcast2).
However, for those who do not have enough front-end bells and whistles, there are options to switch completely standard modules.
The player lives in the system tray, can recall that now plays a playlist, supports hotkeys, MSN shows in the current track, and with via plug-pack can still learn to understand a bunch of formats (Speex, WavPack, Audio CD, Musepack, OptimFROG, True Audio, Audio Codec 3, Monkey's Audio, Windows Media Audio, Advanced Audio Coding, Free Lossless Audio Codec, Apple Lossless Audio Codec), in general, is what I need to work.
Evil Player unpretentious can exist on a flash drive together with all plugins, and its sound module based on BASS library has an excellent playback quality. About system requirements and the size will not even talk.