In SS 2000 and 7.0, the SQL Server default when Enterprise Manager created a database was to name the data files DBName_Data.mdf and DBName_Log.ldf. The logical names were DBName_Data and DBName_Log. Since SS 2005, it seems that the interface is by default naming the data files, DBName.mdf, DBName_log.ldf and using the logical names DBName and DBName_log. This has caused inconsistency between those databases using the 2000 default convention and those of using 2005 convention. This gives us issues when trying to use a dynamic SQL script to restore all the database from backup because the logical names and file names use differing conventions. (as well as those following no convention.) I would like to request that the Navy DBA here mandate that one convention or the other be used. But unless I can give a reason based on the rationale used by Microsoft to change this convention, I can not make such a request as it would entail incurring a cost which the government would not authorize without a pressing need. I entered a forum thread in SS Forums, but the only responses state that they do it a specifc way or that I should establish a requirement that all databases do it in a specific way not understanding the restrictions that prevent me from doing so. No Microsoft employee responded to the thread to provide their rationale. Finally, someone told me to go here to get the answer, (which I find odd as this is a place for making suggestions or reporting bugs not getting answers.) So I am again asking my question. Why did the default db naming conventions change between 2000 and 2005?