Zac:
Thank you for recommending hooking ExporterQuickTimeHost.prm to make a custom exporter to an alien file system. That worked great and the client was very happy.
Now another client wants an MXF OP-1a exporter for a similar project. I would navigate the alien file system and then export the MXF there.
For MXF is there a similar Media Exporter hook to ExporterQuickTimeHost.prm to make MXF OP-1a files?