I have attached my Sony PD170 mini dv recorder DVCAM, by a wirewire to thunderbolt led, but the Magix software does not recognise it. I am using a windows 10 operating system.
The elago firewire 400 to 800 adapters, I can find, do not mention conversion of the firewire signal ie they are just an 'adapter' ie converting from one plug format to another and do not convert firewire signal to thunder bolt.
Are you running windows on a MAC if so it this using Parallels or Bootcamp?