Thanks again! I have forgotten to change the task setting. These should be the reason why there was no simultaneously copying.
I have 14 different hard drives (the sources) with different files on it and I wanna copy these files do my RAID 0 Volume as fast as possible.
First I took the windows explorer, but this manual copying is not very satisfying.

But with these method I reach approx. 280 MB/sec transfer rate from my 14 sources (hard drives) to the RAID 0 Volume. (4 x 1TB drives)
Tomorrow I will do these test to find out why this great program hangs when I start a copy to the RAID 0 Volume.
(when this happens the CH process has exactly 25% CPU usage)
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