Wilfred Bos released a new version of ACID 64 Player Pro. Changes in this version: Stereo SID (2SID) support for: HardSID 4U, HardSID Quattro, multiple HardSID ISA/PCI cards and JSidDevice v1.1. Emulation improvements. Improvements with the calculation of player speed and with SID search. And many more small improvements. You can download the new ACID 64 Player Pro from Wilfred's web page.