And I think I need an operational disk player to put the sound on the sd :-(
Indeed, unfortunately the Emulator-I has only one floppy drive, so when you replace it by the SD HxC, you can not load the floppy disks anymore to save them afterwards on the SD card (as is possible with a double drive Emulator-II).
If you have floppy disks for the Emulator-I that you want to rescue/backup to SD card, the easiest way is to buy also a KryoFlux USB floppy disk controller and a second hand 5.25 floppy drive used in old PCs. With these devices you can copy the floppy disks on a Windows PC and convert/save the result to the SD card.