Examples invalid?

Hi Folks,
 
I believe that the schemas in this document have some bugs.  For example, in
Example 1 there is:
 
<xs:element name="MyBinaryData"/>

I believe that the slash at the end should not be there.
 
All of the examples show a restriction of a simpleContent, e.g.,
 
    <xs:complexType name="JPEGPreferredPictureType">
        <xs:simpleContent>
            <xs:restriction base="xs:base64Binary" >
                <xs:attribute ref="xmlmime:contentType" use="required" />
            </xs:restriction>
        </xs:simpleContent>
    </xs:complexType>
 
I believe that it should an extension of a simpleContent, e,g,
 
    <xs:complexType name="JPEGPreferredPictureType">
        <xs:simpleContent>
            <xs:extension base="xs:base64Binary" >
                <xs:attribute ref="xmlmime:contentType" use="required" />
            </xs:extension>
        </xs:simpleContent>
    </xs:complexType>
 
All the examples have similar problems  /Roger