diff --git a/Slim/Formats/Movie.pm b/Slim/Formats/Movie.pm
index cad6a44..f63ad8d 100644
--- a/Slim/Formats/Movie.pm
+++ b/Slim/Formats/Movie.pm
@@ -124,12 +124,15 @@
 sub _doTagMapping {
 	my ($class, $tags) = @_;
 
 	# map the existing tag names to the expected tag names
 	while ( my ($old, $new) = each %tagMapping ) {
-		if ( exists $tags->{$old} ) {
-			$tags->{$new} = delete $tags->{$old};
+		foreach ($old, uc($old), lc($old)) {
+			if ( exists $tags->{$_} ) {
+				$tags->{$new} = delete $tags->{$_};
+				last;
+			}
 		}
 	}
 
 	# Special handling for DATE tags
 	# Parse the date down to just the year, for compatibility with other formats