Foobar2000 Media Player is a very very recommendable player. It is developed by Peter Pawlowski who is or used to work on Winamp3. Who really knows.
FB2000 uses a plain and simple UI - no skins, no fuss. Current version is 0.28 beta which does not require an installation. Filesize is 399kb, while in playback mode the player approximately consumes 1.9Mbyte of your RAM which is so much less compared to Winamp or MS Media Player. Foobar2000 feature list: Supported format: MP3, Ogg Vorbis, MPC, FLAC, Ogg FLAC, WAV, MOD (needs foo_mod.dll), SPC (needs foo_spc.dll) 32bit floatingpoint audio processing pipeline, with 6dB hard limiter and conversion to 16/24bit (dithered) at the end. Lossy formats (MP3, Vorbis, MPC) are decoded directly to 32bit FP so there's no clipping Transparent rar/zip reading (slow) Full unicode support, new playlist format (m3u8) storing international filenames properly (using UTF-8) Runs *only* on Win2K / XP or newer Builtin SSRC resampler component (DSP) Reads APEv2 tags from MP3 files (id3v2 is not supported and will never be) Fully customizable keyboard shortcuts, including global hotkeys Notice: player features constantly updating Download Foobar2000 - Just do it and do not ask why Foobar2000 forums