An external command up to but not including DOS 6 that reads data on disks that are physically damaged. It reads files a sector at a time recovering whatever data it can and puts the recovered files into the root directory. You can recover an entire disk by specifying only the drive letter, but recovered files are renamed starting with FILE0001.REC, and you won't know which is which. It is best to recover one file at a time; for example:

         recover a:sales.dbf