aiwa xd dv370 won't play backups

  domo 19:14 11 Feb 03

at friend lent me a dv of a current film on release that plays perfectly on his cheap pacific dv plays on my laptop end desktop but will not play on my awia xd dv370,i,ve checked and it is supposed to play dvd-r and dvd+r,its region free,there is a menu that gives the name and a play button ,i,ve tried every button combination on the remote control but with no luck.any ideas???

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