Hi Gary,
I did not install the device driver as Sony specifies it is needed “when using the macbook pro” express card slot, which I am not. Also, nowhere in the Sony site does it say that with the Sony card reader you need to install the device driver…
Having said that, I suppose it does not hurt to try…
Not sure what you mean by “cleanUSB3” port for the reader. I have tried directly attaching as well as via a powered hub… same. Since my post I also clean installed a MacPro (8 cores, 64 GB Ram, dual 700), with same results. It is as if, on these machines, the sxs driver was not working, even though it is installed in the very same place as on the macbook pro…
I will install the device driver today and see if it changes anything, reporting back here. Thank you for your help.
Patrice Freymond
Editor  Certified Trainer FCPX 10.1.4
Post Consultant
Always learning…