I have scripted CopyNew.bat to copy selected NEW files from a source path to a destination path.

The syntax for using CopyNew.bat is:

\[call\] CopyNew SourceFolder DestinationFolder \[/V\] \[Mask1\] \[Mask2\] \[Maskn\]

where:

SourceFolder      Can be expressed in the \[Drive:\]\\[Path\] or \\ComputerName\Share\\[Path\] format. 
                  NEW files in sub-folders are also copied.

DestinationFolder Can be expressed in the \[Drive:\]\\[Path\] or \\ComputerName\Share\\[Path\] format.

/V                Display the NEW files on the console as they are copied.

Maskx             If these optional parameters are omitted, all NEW files (*.*) are copied. 
                  Any mask that DIR considers valid can be used.

                  Sample valid masks:   *.*
                                        "*.txt"
                                        *.txt
                                        "k*.doc"
                                        k*.doc
                                        "Word Document*.doc"
                                        *.txt,*.doc

                  Sample invalid masks: "*.txt,*.doc"    since the comma (,) is NOT considered a 
                                                         separator when encapsulated in quote (") marks.

NOTE: A file is NEW if it DOES NOT EXIST in the destination path.

NOTE: CopyNew.bat will create any needed destination path folders and sub-folders.

NOTE: CopyNew.bat returns the following ERRORLEVELs:

     0  All NEW files were copied without errors.
     1  The parameter syntax was incorrect.
     2  The source path does NOT exist.

CopyNew.bat contains:

@echo off
setlocal
if \{%2\}
\{\} goto syntax
set src=%1
set src=%src:"=%
set dst=%2
set dst=%dst:"=%
if not exist "%src%\*.*" goto nosrc
set verbose=N
if \{%3\}
\{\} set mask=*.*
if /i \{%3\}
\{/v\} set verbose=Y&if \{%4\}
\{\} set mask=*.*
if /i \{%3\}
\{/v\} shift
shift
:ml
shift
if \{%1\}
\{\} goto copy
if not defined mask set mask=%1&goto ml
set mask=%mask%,%1
goto ml
:copy
if not exist "%dst%\*.*" md "%dst%"
for /R "%src%" %%a in (%mask%) do set file=%%a&call :isnew
endlocal
exit /b 0
:syntax
@echo Syntax: \[call\] CopyNew SourceFolder DestinationFolder \[/V\] \[Mask1\] \[Mask2\] \[Maskn\]
endlocal
exit /b 1
:nosrc
@echo CopyNew - SourceFolder "%src%" not found.
endlocal
exit /b 2
:isnew
call set work=%%file:%src%=%%
if exist "%dst%%work%" goto :EOF
if "%verbose%" EQU "Y" @echo "%dst%%work%"
call :dstfld "%dst%%work%"
call :copyq>nul
goto :EOF
:dstfld
set fld=%~DP1
if not exist "%fld%*.*" MD "%FLD%"
goto :EOF
:copyq
copy "%file%" "%dst%%work%"