Copyrighted files/documents - How are they deleted from FileSonic?

[soft2050]

but how to change md5 in fsc

You can't directly change md5 of a file
You need to add a byte to the file to change its hash. Different uploading tools/scripts like sBorg , phpUploader has ability to change md5 hashes of file automatically

but can u say how to change in md5 in rar with any softwares?

As stated above, hash is changed by adding a single byte to the original file.
There are many different tools available to do so.

One of them is: http://www.besthostingforums.com/64-...er-v1-0-a.html

You can even add any other file to the rar like any extra link or password protect the archive to change hash too