From the 2015 season disk I found several birthdate discrepancies with baseball-reference, many of which carried over to the 2016 season disk. Not sure if anyone cares but thought I would post.

uid dmbdate bbrefdate
Kal Cowart 29573 19910814 19920602
Dan Murphy 28177 19850104 19850401
Tre Plouffe 28385 19860515 19860615
Chr Beck 29484 19910613 19900904
Mik Montgomery 29862 19900202 19890701
Tyl Olson 29910 19900402 19891002