Check the listing for details. Ensoniq EPS OS Operating System Disk v 2.49 Boot +26 Instruments! Over 350 Sold. Condition: New. Listed at 12.00 USD. Ensoniq EPS OS Operating System Disk V 2.49 (latest) One copy of the original EPS OS boot image on a new high quality DS/DD 3.5" diskette. Labeled as pictured - Disk color may vary.I am an Ensoniq E.P.S. user for over 28 years.This is the startup OS disk that you need to boot the Ensoniq EPS Performance Sampler/Sequencer WorkstationAlso works on the rack version, EPS-M SPEEDY DELIVERY & HIGHEST QUALITY! We only ship to your verified paypal address, no re-routing, no exceptions. BONUS!!! Included on your OS disk is a starter library of 26 quality instruments. 01-MINI DRUMS 02-MOOG BASS 03-HAMMOND ORGAN 04-KEY CLICK HAMMOND 05-ASSORTED B3 ORGANS 06-MULTI-ORGAN 1 07-MULTI ORGAN 2 08-MULTI ORGAN 3 09-TINY 9 BLOCK ORGAN 10-VIBES 11-KAWAI RETURN HOME (GREAT BREATHY PAD) 12-MOOG FILTER (USE MOD WHEEL) 13-TRIANGLES 14-CELESTIA 15-RUBBED GLASS 16-KALIMBA PERCUSSION 17-TUNED NOISE (SONAR LIKE) 18-MADE ON EPS WAVEFORMS (MOOG LIKE) 8 BLOCKS 19-CASIO CZ 1000 FEEDBACK 20-CASIO CZ 1000 HOVERBELL 21-CASIO CZ 1000 GLASS FLUTE 22-CASIO CZ 1000 PLUNK (GREAT PRESET FROM CZ) 23-CASIO CZ 1000 BOX BASS 24-CASIO MODEL HOME (MODWHEEL) 25-SUPER LEAD 26-TROMBONE