dsfo is a free program that can save a block of data of any size from any location within a file.

With the DS File Ops Kit you can:

- backup any disk partition, including "live" and "hidden"

- backup entire disk, including "live"

- create an ISO CD-ROM or DVD-ROM image

- create a floppy disk image

- restore a floppy disk image

- save a block of data of any size from any location within a file

- overwrite a block of data of any size at any location within a file

- instantly create a file of any size

- truncate or extend files

- encrypt or decrypt files and directly overwrite them

- scan the volumes of a computer and get detailed infos

- check MD5 signature of a partial or complete data object

- join two files

- scramble a file with the contents of another one (OTP)

- do a bitwise reversion operation on any file

- securely erase files, partitions and disks

EXPERIMENTAL FEATURES

- restore disk partitions

- restore entire disk

(fast sector-level transfer)