Data Copier 2004 is most powerfull software for copying unreadble files from bad media for Windows (TM). Here are some key features of Data Copier 2004:Powerfull file copying from all popular media (CD, Diskette, DVD...).Very fast byte copy process with 16 different speed buffers from 8 bytes to 4 mb.Support changing unreadble byte-s with new byte which you can choose manually or from another file.Reading and writing byte buffer from 4 mb downto 8 bytes.Copying with test mode without writing to destination file.