Then I suspect [SYSTEM] is an invention of 7Zip. AFAIK, $Mft, etc, are either not catalogued in any directory, or they're catalogued in the root directory. Maybe 'file not in directory' is too weird for 7Zip's mind
Still, I thought those things were generally invisible unless a filesystem debug switch was enabled. But as suggested elsewhere, perhaps they're only invisible via the Windows API, not the native API.
I have no idea what [DELETED] is; there's no corresponding NTFS construct that I know of. Can 7Zip do disk scavenging?