By using the Index function, you can use DEVONthink to set up a catalog for your data DVDs, SD cards, or other removable volumes. Create a group for each disk by using the index function, and organize your disks/groups in any way you like. When you need a specific file, search for it in DEVONthink, insert the volume, Control-click the file in DEVONthink, and select Open With to open the original file on the removable volume.

Note you will only see a thumbnail if the disk or volume is not available. A message to Mount Volume will be shown if a server volume is unavailable. Clicking this button should remount the volume, if possible. For removable disks, DVDs, etc., you will have to reinsert the media.