<ul>
<li>I created a protected folder on my ASP.NET site with the "ASP.NET Configuration" tool.</li>
<li>It made a database called App_Data/ASPNETDB.MDF where it stores one (1) user.</li>
<li>While uploading I noticed now that the database has grown to 10 MB and the .ldf file is 5 MB. (!)</li>
<li>I tried to look at it with SQL Server 2008 Management Studio but when attaching it said "Failed to retrieve data for this request."</li>
</ul>

<p>Has this ASPNETDB.MDF bloat every happened to anyone else?</p>

I think this is just the default size for the aspnetdb, at least in sql 2005 express all my aspnetdb databases are 10mb initially