What is the difference between RAW and Unclassified folders in ReclaiMe File Recovery

There can be notably different folders in the folder tree displayed in ReclaiMe File Recovery:

• Filesystem root named after a recovered filesystem, e.g. FAT, NTFS, EXT and others – in this folder ReclaiMe File Recovery places files and folders routinely recovered during the filesystem scan. Typically, you are after the content of this folder.
• RAW - holds the fragments of files, which ReclaiMe File Recovery was not able to match to the specific filesystem. Unless your filesystem is severely damaged, you do not need the content of RAW folder at all.
• [Unclassified] - files are put into this folder when the proper parent location cannot be established for them. Each filesystem may have its own unclassified folder. Most often, these are previously deleted files, that were deleted long ago. It is not likely you need any of these. On average, these files have lower quality of recovery compared to the primary filesystem tree.

There can only be a single instance of each file. That is, if the file is first put into RAW section, and later its location in the filesystem and name are discovered, the file is moved (not copied) from RAW to its appropriate location. However, files can still appear in a RAW section even in a perfectly correct filesystem recovery. This is because some files can contain other files, like ZIP may contain JPEGs in it. In this case, RAW section may contain "inside" files from the ZIP or other container file.