I am rebuilding a Drupal 7 site, making some changes to the data structure along the way. On the old site, I have a content type with an image, a description, and a couple other text fields. On the new site, I need this content to appear as images within a gallery (Media Gallery module). I also need to preserve the description field.
I'm not sure where to start. I used the Feeds module to migrate some other content types to their new versions, but that module cannot create this "Media" object, only nodes.