<p>Anyone using MozyPro to backup SQL Server databases?</p>

<p>I'm concerned about the way it does the backup. It just copies data files the way they are. Not using the backup database command.</p>

<p>Is it safe?</p>

MozyPro uses the Volume Shadow Service (VSS) to create backups for SQL Server.  SQL Server 2005 has been engineered so that VSS backups are consistent.  So this is definitely a valid way to back up SQL Server databases.
Here is a white paper
on how the SQL Server 2005 SQL Writer works with VSS.
Microsoft® SQL Server™ 2005 provides
  support for creating snapshots from
  SQL Server data using Volume Shadow
  Copy Service (VSS). This is
  accomplished by providing a VSS
  compliant writer (the SQL writer) so
  that a third-party backup application
  can use the VSS framework to back up
  database files. This paper describes
  the SQL writer component and its role
  in the VSS snapshot creation and
  restore process for SQL Server
  databases. It also captures details on
  how to configure and use the SQL
  writer to work with backup
  applications in the context of the VSS
  framework.
Here is the MozyPro manual
(PDF), which describes how to restore SQL Server backups that were made using VSS.
That being said, if you don't trust this method, there is nothing stopping you from setting up a backup job and just having Mozy backup your *.bak files.