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  <xsd:element abstract="true" id="mdca_NumeratorAbstract" name="NumeratorAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mdca_OptionalredemptionDomain" name="OptionalredemptionDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mdca_Optiontopurchasenoncontrollinginterestimpairmentcharge" name="Optiontopurchasenoncontrollinginterestimpairmentcharge" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mdca_OtherRegionsDomain" name="OtherRegionsDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mdca_OutstandingChecks" name="OutstandingChecks" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="mdca_PeriodAxis" name="PeriodAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mdca_PeriodDomain" name="PeriodDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mdca_PreferredStockAccretionPercentagePreferencePerShare" name="PreferredStockAccretionPercentagePreferencePerShare" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="mdca_PreferredStockAccretionRatePreferencePerShare" name="PreferredStockAccretionRatePreferencePerShare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="mdca_PreferredStockConversionBasisCommonStockClassAClosingTradePrice" name="PreferredStockConversionBasisCommonStockClassAClosingTradePrice" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="mdca_PreferredStockConversionPricePreferencePerShare" name="PreferredStockConversionPricePreferencePerShare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant" />
  <xsd:element id="mdca_PreferredStockLiquidationPreferencePercentageRateChangeofControloftheCompany" name="PreferredStockLiquidationPreferencePercentageRateChangeofControloftheCompany" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="mdca_PremiumPaidOnRedemptionOfNotes" name="PremiumPaidOnRedemptionOfNotes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mdca_RealEstateJointVentureMember" name="RealEstateJointVentureMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mdca_RedeemableNoncontrollingInterestCurrencyAdjustments" name="RedeemableNoncontrollingInterestCurrencyAdjustments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mdca_RedeemableNoncontrollingInterestMember" name="RedeemableNoncontrollingInterestMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mdca_RedeemableNoncontrollingInterestPolicyTextBlock" name="RedeemableNoncontrollingInterestPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="mdca_Redeemablenoncontrollinginterestobligationyearofpayment" name="Redeemablenoncontrollinginterestobligationyearofpayment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:gYearItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mdca_ReportableSegmentDomain" name="ReportableSegmentDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mdca_ReportingUnitAxis" name="ReportingUnitAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mdca_ReportingUnitDomain" name="ReportingUnitDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mdca_ScheduleOfNetIncomeLossAttributableToParentAndTransfersToAndFromNoncontrollingInterestTableTextBlock" name="ScheduleOfNetIncomeLossAttributableToParentAndTransfersToAndFromNoncontrollingInterestTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mdca_Series4ConvertiblePreferredStockDomain" name="Series4ConvertiblePreferredStockDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mdca_ShareCapitalAbstract" name="ShareCapitalAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mdca_ShareCapitalLineItems" name="ShareCapitalLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mdca_ShareCapitalTable" name="ShareCapitalTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mdca_ShareCapitalToBeIssuedMember" name="ShareCapitalToBeIssuedMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mdca_SignificantAccountingPoliciesLineItems" name="SignificantAccountingPoliciesLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mdca_SignificantAccountingPoliciesTable" name="SignificantAccountingPoliciesTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mdca_SixPointFiveZeroPercentageNotesDomain" name="SixPointFiveZeroPercentageNotesDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mdca_SixPointSevenFivePercentageNotesMember" name="SixPointSevenFivePercentageNotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mdca_StockAuthorizedDuringPeriodSharesTobeIssued" name="StockAuthorizedDuringPeriodSharesTobeIssued" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="mdca_StockAuthorizedDuringPeriodValueTobeIssued" name="StockAuthorizedDuringPeriodValueTobeIssued" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mdca_StockIncentivePlan2011Member" name="StockIncentivePlan2011Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mdca_StockIncentivePlan2016Member" name="StockIncentivePlan2016Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mdca_StockIssuedDuringPeriodSharesConvertiblePreferredShares" name="StockIssuedDuringPeriodSharesConvertiblePreferredShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="mdca_StockIssuedDuringPeriodValueConvertiblePreferredShares" name="StockIssuedDuringPeriodValueConvertiblePreferredShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="mdca_SubsidiaryandEquityInvestmentStockTransactionPolicyPolicyTextBlock" name="SubsidiaryandEquityInvestmentStockTransactionPolicyPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mdca_SupplementalSegmentInformation1Abstract" name="SupplementalSegmentInformation1Abstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mdca_TerminationordeathredemptionrightDomain" name="TerminationordeathredemptionrightDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="mdca_TrustLiabilityCurrent" name="TrustLiabilityCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="mdca_VariableInterestEntityPolicyTextBlock" name="VariableInterestEntityPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mdca_WeightedAverageNumberOfSharesOutstandingForBasicAndDilutedAbstract" name="WeightedAverageNumberOfSharesOutstandingForBasicAndDilutedAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="mdca_WellsFargoCapitalFinanceLlcMember" name="WellsFargoCapitalFinanceLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
