I'm using Tape :D Slow as hell but still working ;) There is an app. called "PlayZX" that play .tap files. I'm my ZX cassette player I have this fake cassette with mini jack cable (You might remember people used this in their car, cassette player). I insert the cable to headphone out on my mobil phone and Speccy see this as a real cassette :) I'm thinking to buy divmmc or similar solution.