This page contains links to compressed?dd?images used to test metadata based deleted file recovery forensic tools. Metadata based deleted file recovery uses residual metadata left behind after a file is deleted to attempt to reconstruct the file. These images are not for testing file carving tools (tools that scan unallocated blocks to find file headers and trailers and then reconstructing deleted files). This page also contains a link to a document describing the creation and layout of each image. Most of the images are simple with just a few files. This is so that the tool behavior in common situations likely to be encountered can be clearly observed. Each image contains one or more partitions (logical drives) within a group of similar file systems.?