When pulling files for patron requests, you may occasionally come across corrupted or incomplete disk images. These are disk images with blank file trees, file trees containing only program files (see image below), or disk images that, when analyzed in Disk Image Processor, output error/"Cannot read DFXML" messages. Be especially aware of CDs from the company RitzPic or that say they have an extent of "12 digital files, 10 MB." If you come across these CDs, scroll down to Part II - Overwritten Content.
Part I - Corrupted or Erroneous Disk Images
Part II - Overwritten Content
Some disk images in the collection only pick up metadata from the company who produced the disks. So far, this has only been the case for CDs from the company RitzPic. These CDs come back with extents of 12 digital files & 10 MB and a date range of 10/6/05-10/7/05. If you come across these disks, go through the following steps to extract and analyze the original content.
1. Mount the disk image in FTK Imager to make sure the original content is not present in the file tree. Typically, the disk image will have this structure:
2. If the disk image has only company files, you will need to extract the files directly from the CD. Load the CD using the external CD drive and open it in FTK Imager.
i.