XMMS-SID is an XMMS1 plugin which provides support for playing the so-called "SID tunes". It uses the libSIDPlay1 and/or libSIDPlay2 emulator engines, which provide a virtual emulation/simulation of the Commodore 64 computer and its SID sound chip. It features a file info window, support for STIL database, a song length database, and good configurability.
New release in works, sorry for delay.
Version 0.8.0 is currently under development, but it has taken quite much time (due to other projects and laziness). It's coming, with blazing new features, have faith! :)