I tried backing up an XDCAM disk to an external HDD and got an ETA of 10 hours.
I then tried importing the .MXF files to the internal HDD first, using XDCAM Transfer, and found the transfer speed to the external drive to drop to 2 hours. NB I'm still transferring directly from U1 to external, but putting the files through XDCAM Transfer first.
Since then the speeds have returned to 10 hours - That's transferring XDCAM from U1 drive to external, after importing the .MXF in XDCAM Transfer.
What is the deal with speed? How do I return it to 2 hours?
This is on a Macbook. On my Imac this process takes 45 minutes after importing in XDCAM Transfer.