title: Rename file to include modified date in file name
body: <p>I'm trying to write a batch file that will copy JPG files from my digital camera to my hard drive. But, I'd also like it to include the file's date in the name.</p>
  
  <p>For example:  A picture taken on 1/23/11 is named P1230001.JPG would be renamed P1230001_20110123.JPG.</p>