1. Versatile X audio player that looks like Winamp XMMS (formerly known as X11Amp) is an X/GTK+ based audio player for various audio formats. It's able to read and play: * Audio MPEG layer 1, 2, and 3 (with mpg123 plug-in), * WAV, RAW, AU (with internal wav plug-in and MikMod plug-in), * MOD, XM, S3M, and other module formats (with MikMod plug-in), * CD Audio (with CDAudio plug-in), with CDDB support, * .cin files, id Software, * Ogg Vorbis files. It has eSound, OSS, and disk writer support for outputting sound. It looks almost the same as famous Winamp, and includes those neat features like general purpose, visualization and effect plug-ins, several of which come bundled, then spectrum analyzer, oscilloscope, skins support, and of course, a playlist window. From Debian 3.0r0 APT

2. XMMS is a sound player written from scratch. Since it uses the WinAmp GUI, it can use WinAmp skins, and play mp3s, mods, s3ms, and other formats. It now has support for input, output, and general plugins, and has also been GPLd. This package also provides an effect plugin based on Sox and a shell for xmms in order to command the running xmms from any script/commandline. From Mandrake 9.0 RPM