You are watching an EPROM with the last OS (1.2) for the Ensoniq ESQ-m. I have a huge collection of synthesizers, I am always available to help in stuff related to the ones I own. From Ensoniq I have the ESQ1 and VFX and I can provideEPROMs (with the latest software and the extra waves),the batteries, pots, theCEM 3379, and theSSM2300.