Dynamics NAV 2017 MediaSet

Hi

I like to get the items pictures assigned in Company1 into Company2. This was easy while the Picture field in table Item was BLOB, but now when it is MediaSet I can't to find out how can I do that..
I'm trying with this code:

IF Item1.FINDFIRST THEN
REPEAT
  Item2.SETRANGE("No.", Item1."No.");
  IF Item2.FINDFIRST THEN
  BEGIN
    Item2.CHANGECOMPANY('Company2');
    Item2.Picture := Item1.Picture;
    Item2.MODIFY;
  END;
UNTIL Item1.NEXT = 0;

but nothing happens ... also I'm trying with this:

IF Item1.FINDFIRST THEN
REPEAT
  FileNameExport := 'C:\Temp\' + FORMAT(Item1."No.") + '.jpg';
  FileNameImport := 'C:\Temp\' + FORMAT(Item1."No.") + '-1.jpg';
  Item2.SETRANGE("No.", Item1."No.");
  IF Item2.FINDFIRST THEN
  BEGIN
    Item2.CHANGECOMPANY('Company2');
    Item1.Picture.EXPORTFILE(FileNameExport);
    Item2.Picture.IMPORTFILE(FileNameImport , 'Demo Image');
  END;
UNTIL Item1.NEXT = 0;

i can't make to import the pictures in Company2 ...

Does any one know how can I transfer only Picture field from one to another company and how can I check does Picture field has value or not, for example:

IF Item1.Picture <> '' THEN ...

does this example for this is ok:

IF Item1.Picture.COUNT > 0 THEN  ...

Regards