ACID 64 Player Pro is the sequal of Acid 64 Player and is a cycle based Commodore 64 music player designed for playing SID tunes on sound cards/devices that have a real SID chip (6581/6582/8580) on board like the HardSID cards and HardSID 4U USB device.

ACID 64 emulates the MOS 6510 micro processor, the 6526 CIA chip and partially the 6569 VIC chip to run the code of a SID tune and it controls the SID chip on the device for playing the Commodore 64 music.

What’s new in version v3.1:

• Stereo SID (2SID) support for: HardSID 4U, HardSID Quattro, multiple HardSID ISA/PCI cards.
• JSidDevice v1.1 (beta version is available at JSidplay2 site)
• Emulation improvements.
• SID ID configuration is now embedded and can be overwritten as a preference setting.
• Improved calculation of player speed.
• Improved SID search for some characters, re-index required.
• Made application UAC aware for Vista/Win7.
• Automatic device changes can now be locked via context menu.
• Many small improvements.

Download: ACID 64 Player PRO v3.1 (WIN32) (1490)

source: acid64.com