title: What's the difference between retail symbols and checked symbols?
body: <ol>
  <li>Windows XP with Service Pack 3 x86 retail symbols, all languages (File size: 209 MB - Most customers want this package.)</li>
  <li>Windows XP with Service Pack 3 x86 checked symbols, all languages (File size: 202 MB)</li>
  </ol>
  
  <p>Quoted from <a href="http://msdn.microsoft.com/en-us/windows/hardware/gg463028.aspx">here</a>.</p>
  
  <p>What's the difference between retail symbols and checked symbols?</p>