JHOVE

Both the WAVE and AIFF modules embed audio metadata in AES format without
providing a schema. One of the produced element make use of xsi:type,
<tcf:filmFraming tcf:framing="NOT_APPLICABLE"
xsi:type="tcf:ntscFilmFramingType"/>. Because JHOVE schema does not
validate embedded xml (processContents="skip"), the use of xsi:type does
not cause problem. However, METS & PREMIS schema will validate embedded
xml if sufficient definition is available (processContents="lax"). When
we import this element into PREMIS document, it is not valid because
xsi:type references a Type
Definition(http://www.w3.org/TR/xmlschema-1/#xsi_type), thus explicit
assertion of type validation is attempted. The type
tcf:ntscFilmFramingType cannot be resolved and causes validation to fail.

Looking into aes.org, we cannot find a schema describing the element in
the namespace http://www.aes.org/tcf. It appears the AES X098B schema is
not publicly available yet (according to Gary).