Copy Folder From One Drive To Another Drive

I copied a folder containing 1000's of sub folders and files from one drive over to another drive but the resultant folder wasn't the same as the source folder, in fact, it was larger.

Folder On Source Drive:

Size: 15,082,689,933
Size On Disk: 15,034,846,155
Folders: 71,521
Files: 5,465


Folder On Target Drive:

Size: 15,084,460,103
Size On Disk: 15,240,458,240
Folders: 71,548
Files: 5,465

Note how everything on the target drive is larger except that the number of files is the same.

How can this be?

NTFS permissions on the source drive? Which FS is the destination action drive? Which method did you employ for the copying the files?

the size is bigger because you have a directory tree duplicated that is empty. I can not say whether or not it was already on the drive or you copied a symbolic link that caused it to repeat. But the problem is pretty obviously in the number of directories. on the other hand, if you have copied media files and then browsed the resultant folders you have generated a crap-ton of thumbnails and these take up a LOT of space and the thumbs.db file was already there from the previous folder.

I have no idea what you're talking about.

It was a straight drag-n-drop type copy from one NTFS drive to another NTFS drive where the target drive had nothing on it. The size of the folder was taken by doing a properties on each one after I did the drag-n-drop copy. If there are 100 folders and each folder has 100 files on the source drive then there should be 100 folders each with 100 files on the target drive. The only thing that stayed the same was the number of files. The number of folders got larger.