How can I transfer or copy an MP4 video, 54MB, to a SamData thumb drive on my iMac

Thank you, Niel, for replying. The video icon when I drag it to the open thumb drive and release it returns to the icon on my desktop and a get a window that says

"The operation can't be completed because one or more required items can't be found. (Error code -43)"

Is it necessary for me to format the new ScanData drive?

Thank you! That was the problem. I thought new thumb drives were already formatted and ready for Mac use. I have never used thumb drives before on a Mac.

Thank you, again.