The MS-DOS Filename field always shows the files short filename as it would appear under MS-DOS. If the file has a long filename it will be shown at the top next to its icon. In this case the file only has a short filename so the same name is shown in both locations.
When a file does not have all three timestamps (Created, Modified, Accessed) recorded those which it does not have are greyed out and set to the current date/time. In the screenshot the file MSDOS.SYS
only has the Modified timestamp.