Edit D:\app\Administrator\product\11.2.0\dbhome_1\ord\Annotator\lib\descriptors\annotations\SampleAnn.xml

<?xml version="1.0"?>
<!DOCTYPE AnnotationDescriptor SYSTEM "AnnotationDescriptor.dtd">
<AnnotationDescriptor>
  <AnnotationProperties>
  <Name>SampleAnn</Name>
  <Version>1.0</Version>
  <Description>Annotation designed to capture attribute relative to a movie text track or any time-based text.</Description>
  <Extends>MediaAnn</Extends>
  <IconFileName>sample.gif</IconFileName>
  </AnnotationProperties>

<AttributeDescriptor>
      <AttributeProperties>
        <AttributeName>SAMPLE_TIMESTAMP</AttributeName>
        <AttributeType>oracle.ord.media.annotator.types.TimeCodeString</AttributeType>
        <AttributeAlias>Time Stamp</AttributeAlias>
        <AttributeDescription>Time stamp of the specified sample. It is in the form of hour:minute:second.mantissa, where mantissa is the fraction of a second with the unit defined by MEDIA_TIMESCALE. One reference is the Time Stamps section of QuickTime 4 API Documentation.</AttributeDescription>
      </AttributeProperties>
    </AttributeDescriptor>

</AttributeDescriptors>
</AnnotationDescriptor>

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