Recovering data after errant copy command?

Question

I meant to do this:

cp -rp -i /cygdrive/c/folder /cygdrive/e/anotherfolder/

But I accidentally hit enter after this:

cp -p -i /cygdrive/c/folder /cygdrive/e/anotherfolder/

And now the contents of ~/Documents/anotherfolder/ is empty because ~/Documents/folder was not a regular file (it was a directory). I'm surprised this was the outcome (contents of anotherfolder removed) and there was no error given.

Are the contents of /cygdrive/e/anotherfolder/? I would appreciate any advice... Thanks. (This is on cygwin running on Windows XP)

EDIT I think the data is still there, as the folder had about 1.5 TB of data and hard disk usage indicates that this data is not cleared off.