I have the following folder structure:
FolderA --Folder1 --Folder2 --Folder3 ... --Folder99
Folders 1 through 99 have files in them.
Robocopy is a great tool... when you have a job it can handle. Why not use xcopy?
If you have two drives you can just use xcopy:
XCOPY C:\*.* D:\NewFolder\ /S
Or use XXCOPY for one drive:
XXCOPY C:\*.* C:\NewFolder\ /S /CCY
XXCOPY