A couple of friends of mine had problems with their computer (OS crash) and let a friend fix it.
The problem is that he did a reformat and a fresh install of the OS without asking. They had all their videos (recorded by them) and all images stored on it and no backups.
The friend tried to restore the files with two different undelete applications without success. Are there any other ways to restore the files except taking the computer to a company specialized in data recovering?