My iPod doesn´t show up when I connect it. But to my satisfaction it showed up by using Disk Drill.
I tried to do a Deep scan om my iPod – no files found.
Then I tried the “Backup into DMG-image. As a result I got a 80Gb .dmg-file.
Unfortunatelly I cannot open that file. By doubleclicking it, I get a message: “Filesystem that cannot be mounted”
More problems: It seems that not even Disk Drill can show my iPod after that.