On Thu, 05 Apr 2018 16:34:06 +0100, "James Wilkinson Sword"
wrote:

The earliest windowses were terrible, the whole copy operation could end up aborted just because you ran out of disk space on a removable drive, which you could put a new disk into and continue with later versions.

You could do all of that with DOS 30 years ago.
If you store this as a batch file it does exactly what you are saying.
It was meant for copying to diskettes that run out of space a lot
faster than a thumb drive

run line would be XCOPIER C:\myfiles*.* A:

(XCOPIER.BAT)
ECHO SETTING ATTRIBITES ON %1
ATTRIB +A %1 %3
ECHO COPYING %1 TO %2
:RUNCOPY
XCOPY %1 %2 /M %3
IF ERRORLEVEL 4 GOTO AGAIN
GOTO END
:AGAIN
ECHO CHANGE DISKETTES THEN
PAUSE
GOTO RUNCOPY
:END