Found two Phonemark Data Drive with two wafers. First one would not load the operating system, second wafer was eaten by one of the drives. Bummer. If you get one of these drives, before putting the wafer in, make sure to tap the wafer to prevent it from getting stuck. Thanks to facebook i got my hands on 10 wafers in the UK, will ship to Southampton for pickup. These wafers are hard to get overhere, but seems quit easy to get in the UK. A datadrive for the Spectrum used these wafers as well and are quit popular in the UK.