DEC502A PIONEER 5.25" 654MB OPTICAL DISK DEC502A$74.95 DC502A PIONEER 650MB WORM OPTICAL DC502A$89.95 DEC-702 PIONEER 654MB OPTICAL DISK DEC-702$199.95 LM1200 PHILLIPS 12" 2GB OPTICAL DISK LM1200$589.95 DEC17GMO PIONEER 5.25" 1.7GB R/W OPTICAL DISK DEC17GMO$199.95 DC17GWO PIONEER 1.7GB WORM OPTICAL DISK DC17GWO$129.95