Videos on this site may not play correctly on this version of { -brand-short-name }. For full video support, update { -brand-short-name } now.
Efallai na fydd fideos ar y wefan hon yn chwarae'n gywir ar y fersiwn hon o { -brand-short-name }. I gael cefnogaeth fideo lawn, diweddarwch { -brand-short-name } nawr.