title: creating multiple zip files based on size
body: <p>I have 150GB of jpg's in around 30 folders. I am trying to import them into the media library of a CMS. The CMS will accept a bulk import of images in a zip file but there is a limit of 500MB on the size of the zip (and it won't accept multi-volume zips).</p>
  
  <p>I need to go into each folder and zip the images into a small number of ~500MB zip files. I am using WinRAR but it doesn't seem to have the facility to do what I want. </p>
  
  <p>Is there another product that will do what I want?</p>
  
  <p>Thanks</p>
  
  <p>David</p>