An example of this sort of data is the secondary DICOM image capture frame from VUIIS. This is available on the shared data storage:
Technically, there should be no secondary DICOM image capture without primary DICOM data, but apparently this has been happening with more frequency on CNDA. We just need to come up with a way to build the catalog and archive this stuff where it occurs.
This is set for a 1.6.2 release, but if it's going to cost significant time (greater than a day, maybe?), go ahead and move it to 1.6 backlog and we'll get to it when we can.