4:3 reference: First version after conversion of P/META into XML 2007-04-12 Valid 14:9 Letterbox For display on 4:3 displays reference: First version after conversion of P/META into XML 2007-04-12 Valid 16:9 reference: First version after conversion of P/META into XML 2007-04-12 Valid 16:9 with pan vectors reference: First version after conversion of P/META into XML 2007-04-12 Valid 16:9 without pan vectors reference: First version after conversion of P/META into XML 2007-04-12 Valid 16:9 Letterbox For display on 4:3 displays reference: First version after conversion of P/META into XML 2007-04-12 Valid 16:9 Anamorphic For display on 4:3 displays reference: First version after conversion of P/META into XML 2007-04-12 Valid 5.5:3 reference: First version after conversion of P/META into XML 2007-04-12 Valid 7:3 Panavision or Cinemascope reference: First version after conversion of P/META into XML 2007-04-12 Valid 2.35:1 reference: First version after conversion of P/META into XML 2007-04-12 Valid 2.21:1 reference: First version after conversion of P/META into XML 2007-04-12 Valid 1.85:1 reference: First version after conversion of P/META into XML 2007-04-12 Valid Others reference: First version after conversion of P/META into XML 2007-04-12 Valid