Eric

Obviously I am new to md's. But I desperately need help. I have a sony MZ-R70 and would like to transfer the live recordings onto my computer. The md only has an optical in, mic in, and 2 headphone jacks. How do I get the recordings onto my computer? The people at sony said it can't be done. And does anyone have any suggestions on cheap microphones? And are there any hacks for this model? Thanks for the help because I have no prior experience with md's.