Wilfred Bos released an update of SID Known. This version is compatible with the latest HVSC (#55). SID Known is a tool which you can use to identify SID tunes from SID and PRG files. The tool has two methods to identify SID music. The first method is to play the SID and generate a hash to look it up in the database. The second method will try to identify the SID tune by it's memory usage.