Duplicate track names isn't a problem I had ever thought about to be honest. Since changing the database structure would be impossible now with nearly 5000 entries, there are two (probable) options:
1. Remove this "duplicate name" restriction (not my favourite option since I must have put the setting in for a good reason)
2. Give the other circuit a slightly different name. "Westmead (2)" or "Westmead (AUS)" or "Westmead Speedway/Raceway" (whatever the official full title might be).
It shouldn't occur THAT many times to be a problem, but let's decide now which type we choose, since I want to be consistent.
As for differentiating between East and West Germany - I personally think we should stick with the modern, accepted country names. Borders move, country names change, but I don't think the database should reflect that.
Developer of the 1967v3 Historic Mod for Grand Prix Legends:
viewtopic.php?t=17429
King of the Race Track, Destroyer of Tyres, Breaker of Lap Records