diff --git a/xsd/35PM-CD-ST-2067-204a-ADM-Audio-Plugin-20230606.xsd b/xsd/35PM-CD-ST-2067-204a-ADM-Audio-Plugin-20230606.xsd
new file mode 100644
index 0000000..0e3cb7a
--- /dev/null
+++ b/xsd/35PM-CD-ST-2067-204a-ADM-Audio-Plugin-20230606.xsd
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xs:schema targetNamespace="http://www.smpte-ra.org/ns/2067-204/2022"
+  xmlns:imfadm="http://www.smpte-ra.org/ns/2067-204/2022"
+  xmlns:cpl="http://www.smpte-ra.org/schemas/2067-3/2016"
+  xmlns:dcml="http://www.smpte-ra.org/schemas/433/2008/dcmlTypes/"
+  xmlns:xs="http://www.w3.org/2001/XMLSchema"
+  elementFormDefault="qualified" attributeFormDefault="unqualified">
+<xs:import namespace="http://www.smpte-ra.org/schemas/2067-3/2016"/>
+<xs:import namespace="http://www.smpte-ra.org/schemas/433/2008/dcmlTypes/"/>
+
+<!-- ADMAudioSequence definition -->
+<xs:element name="ADMAudioSequence" type="cpl:SequenceType"/>
+
+<!-- ADMAudioVirtualTrackParameterSet definition -->
+<xs:element name="ADMAudioVirtualTrackParameterSet">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element name="Id" type="dcml:UUIDType"/>
+      <xs:element name="TrackId" type="dcml:UUIDType"/>
+      <xs:element name="ADMOperationalMode" type="xs:anyURI" />
+      <xs:element name="ADMSoundfieldGroupSelector"
+        type="imfadm:ADMSoundfieldGroupSelectorType" minOccurs="0" maxOccurs="unbounded" />
+      <xs:any namespace="##other" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<!-- ADMSoundfieldGroupSelectorType definition -->
+<xs:complexType name="ADMSoundfieldGroupSelectorType">
+  <xs:sequence>
+    <xs:element name="ResourceId" type="dcml:UUIDType" />
+    <xs:element name="ADMSoundfieldGroupLinkID" type="dcml:UUIDType" maxOccurs="unbounded" />
+  </xs:sequence>
+</xs:complexType>
+
+</xs:schema>
diff --git a/xsd/st2067-203a-20XX.xsd b/xsd/st2067-203a-20XX.xsd
new file mode 100644
index 0000000..52071c0
--- /dev/null
+++ b/xsd/st2067-203a-20XX.xsd
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xs:schema targetNamespace="http://www.smpte-ra.org/ns/2067-203/2022"
+  xmlns:imfsadm="http://www.smpte-ra.org/ns/2067-203/2022"
+  xmlns:cpl="http://www.smpte-ra.org/schemas/2067-3/2016"
+  xmlns:dcml="http://www.smpte-ra.org/schemas/433/2008/dcmlTypes/"
+  xmlns:xs="http://www.w3.org/2001/XMLSchema"
+  elementFormDefault="qualified" attributeFormDefault="unqualified">
+<xs:import namespace="http://www.smpte-ra.org/schemas/2067-3/2016"/>
+<xs:import namespace="http://www.smpte-ra.org/schemas/433/2008/dcmlTypes/"/>
+
+<!-- MGASADMSignalSequence definition -->
+<xs:element name="MGASADMSignalSequence" type="cpl:SequenceType"/>
+
+<!-- MGASADMVirtualTrackParameterSet definition -->
+<xs:element name="MGASADMVirtualTrackParameterSet">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element name="Id" type="dcml:UUIDType"/>
+      <xs:element name="TrackId" type="dcml:UUIDType"/>
+      <xs:element name="MGASADMOperationalMode" type="xs:anyURI" />
+      <xs:element name="MGASADMSoundfieldGroupSelector" 
+        type="imfsadm:MGASADMSoundfieldGroupSelectorType" minOccurs="0" maxOccurs="unbounded" />
+      <xs:any namespace="##other" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<!-- MGASADMSoundfieldGroupSelectorType definition -->
+<xs:complexType name="MGASADMSoundfieldGroupSelectorType">
+  <xs:sequence>
+    <xs:element name="ResourceId" type="dcml:UUIDType" />
+    <xs:element name="MGASoundfieldGroupLinkID" type="dcml:UUIDType" maxOccurs="unbounded" />
+  </xs:sequence>
+</xs:complexType>
+
+</xs:schema>