audit object access

From: mar (anonymous_at_discussions.microsoft.com)
Date: 02/27/04 

Date: Fri, 27 Feb 2004 04:33:55 -0800

If I just want to audit when someone opens any file
within an elaborate directory structure , which events in
the auditng entry page to you turn on? List folder/Read
Data appears to be the one, but once you turn successful
entries on for that, you get security events triggered
when the explorer the folder structure.

Is there a way to reduce that?