A correction to Mr. Evan's fire naming scheme. The Scenery Team (Stacey and myself included) has and continues to use now the following format:
ADE_xxxx_BVA.bgl
Where xxxx is the ICAO airport identifier.
leadbottom1, installing a duplicate version of the scenery update will not crash FSX, or I have at least never heard of an instance where FSX has crashed due to such a mistake. You WOULD however, notice on occasion double taxisigns, double taxiways and sometimes double buildings when this occurs, and it is very apparent. Evan is correct tho, checking the naming of the files in your scenery folder is a quick way to scan for an update you may already have installed. Furthermore, as airports are updated in the Event Scenery section, their old upload will be withdrawn, and a new one posted in its place. So simply check the event scenery page to see if a new version has been posted. If not, an update of your scenery will not be needed.
I just want to be clear that the majority of our edits (90%) involve taxisign naming changes, and adding additional/required parking to an airport. Other large scale improvements we process are additional aprons, added runways, and deleted/moved/closed taxiways. On major airports where deemed necessary, approaches are sometimes edited to more closely reflect the real world, and these approaches are accessible by using the FSX GPS. We update such approaches when we find FSX uses default airspace fixes, instead of real life ones.
If it will help, I will remember down the road to post all/the large majority of updates we have processed for each scenery we distribute, so you can see what changes have occurred at a glance. Let me know if this would be helpful.
