Hi JD
Try one of these:
1. Format a floppy on your Sy77. SY77 will format it to 720 kB diskette (itīs the only format SY77 can read.) Put it in your PC and save your sound on it.
2. Use the midi interface (cable). Make sure you have put sy77 in Local off mode (menu 807)
Good luck
//PetterB