SMPLayer has some kind of encoding issues so Cyrillic characters are displayed as some garbage in window title(please refer to attached screenshot for details)
Tested VLC, MPC-BE - no such issue found.
On this example SMPlayer sees this meta data as: ���� ��ॢ�� � ����� ���� 3.2015.Rip by: ollan
VLC (and all other players in the Universe) sees it as Иван Царевич и Серый Волк 3.2015.Rip by: ollan
OS Win 7 32bit, Win 7 64bit, Win 10 64bit
SMPlayer: 17.3.0 (revision 8467) (64-bit)