Greg, If you were looking or asking others to look at the BDM CD's the answer is simple.
Anything that could NOT be read clearly was omitted from the CD's.
Everytime some looks at the CD's and cannot find something,,they keep stating "It probably wasn't registered" but the fact is,,,,if the name or date could not be read it was omitted from the CD's.
On original registers some stuff is missing for various reasons, either family lived too far away from a registry, the pages were lost/ruined..who knows,,, BUT the CD's do NOT contain all registrations listed.
When someone is missing from the CD's it is best to check elsewhere.