Yvan256 asks: "I've been looking for over 15 years for the Innovation SSI 2001 soundcard. It's a very old and extremely rare ISA card, based on the SID 6581 chip of the Commodore 64. Yes, I am aware of the HardSID (I've got one), but it's not hardware compatible with the SSI 2001 (different method of accessing the SID registers). The SSI 2001 is about the only card missing from my soundcards collection. I am aware of the IBM Music Feature, I have one. It's just not on the webpage yet. Please note, this collection is about the different technologies that came out at the beginning of the soundcards era, not the thousands of SoundBlaster clones that were available (including the Pro Audio Spectrum series). So, if anyone has an Innovation SSI 2001, or know where I could get one, please tell me."