Where is the Meta35 filmdata.db file?

Win: C:\Users\<username*>\AppData\Roaming\Promote Systems Meta35
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Mac: Macintosh HD > Users > Username* > Library > Application Support > Promote Systems Meta35 > Database > filmdata.db
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*your username
Note these folders may be hidden see http://www.akaipro.com/kb/article/1606

Temporary access to the hidden User Library
Method 1:
From the Finder, select the Go menu at top of the screen, and choose Go to Folder.
In the window that opens, enter ~/Library, and click Go.
Method 2:
Go to the Finder (or desktop).
Hold the Option key on your keyboard, and click the Go menu at the top of the screen.
With the Go menu open, you'll notice that pressing and releasing Option will display or hide the Library choice in this menu.
Select Library from the Go menu (while holding down Option) to access the hidden folder.