Hi xavier murray,
If you don't get an answer quickly enough to this question, please try the ArcGIS Pro community page ArcGIS Pro or the Open Platform, Standards and Interoperability - someone should be able to answer your question more quickly there.
Regards
Hi Xavier
There isn't a DM reader in Data Interoperability, you might like to create an Idea at Safe's site:
Alternatively, if this site is correct you might create a Python tool to extract the data (struct module):