Hi Mohamed
When the first frame time ends the FITS window doe not open and the rotating circle just spins. After a minute I aborted that's why I said download   could have just been long. Yesterday I got around to looking at the problem again and found that it is the path description to the usb stick that was wrong. I put the path as /media/stellarmate/123GBvolume. Then I realised that a name had been attached to the volume,CB7C-26F5.When I entered the the path as /media/stellarmate/CB7C-26F5 things worked and my 18Gb files download in about 2 secs.I have no idea where this name comes from, it must be already attached to the usb stick when I bought it.

I’m glad that your problem is resolved. As a rule of thumb in Linux, don’t make assumptions, and make sure you copy and paste the correct path. Sometimes I put empty text file like “usbroot.txt” just to make sure I’m in the right folder.

The name you saw is most probably the USB drive serial number.

Is there any specific reason for this? Feature seems to be rather useful