There is, open the dvd on the dvd drive (pc) and extract the cdrom.toc file from the top level, if it's the 2009-1 NA it will have these details.

Continental Automotive GmbH

Content

Volume: CD_6565
Date: 13.8.2008
db: NA(2007Q3)
Area: North America
Supplier: Navteq
Version: 505.19.735.2.84
Customer: 318766610
Features: ZIP3kb feaV10(BMW)
TPD: 2008080003
SVD:
TMC: 20080721
Phoneme: yes
DBAL: V1.15V2.13V3.0V4.8V5.6V6.1V7.1

Date is in format (DD/MM/YYYY) and is on a par with the release date for Euro discs.

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Sept 03, M3, Silver Grey. Retro-fits: Modded Mk4 DVD Drive, OEM Bluetooth, VR Control, Rainbow Speaker Upgrade, Sony SOT Amp, HK Sub, CCFL, Intravee II, NightMode.