Hi MG
Sorry to say that after a few more listenings,I am now not quite sure whether the piece is the "true" 5th movement from Hary Janos.
I tried to upload the 5th ,but the file is too big ( 563 kb ).
You may want to check it out at Classical Music Archives though( classicalarchives.com )
Sorry for the inconvenience.
Regards
Djim