Below are some good disk editors for windows and linux.
Below is a full data recovery program that has a disk editor built into it.
Media Tools Professional will need a windows system to create the CD that it boots from to run. Once the CD is created in windows then Media Tools Professional can run without windows being started.
Below is a good free hex and disk editor for windows.
These disk sector editors could help you if you understand the disk structures and are trying to recover a file manually because none of the data recovery programs you are using are able to recover your file.
Also if you are a programmer then you could use the disk editors above to make sure that any data recovery programs you make work. For example if you are making a data recovery program that is able to repair the boot sector of a disk then you could use a disk sector editor to erase the boot sector of the disk you want to try and repair with your data recovery program to see if your data recovery program can repair the boot sector on the disk properly.
For more information on disk editors read the disk editor wikipedia atricle.
For more information on disk structures read our Learning Data Recovery post.
If you know of any good disk editors please leave a comment to this post and let our blog visitors know about them.