This software copies data from files or devices while attempting to recover any lost or damaged data caused by read errors. Suitable for both hard disks and CD-ROMs.
One of the exciting features of DDrescue is the automatic merging of backups. If you have several damaged copies of a CD-ROM or file, the software can read all of them one after the other with the same output file. The probability of having damaged areas at the same places on different input files is minimal, and the tool utilises the logfile to read only the required blocks. The logfile is periodically saved to the disc, and in case of a crash, the rescue can be resumed with minimal recopying.
DDrescue also provides users with flexibility in the recovery process. The same logfile can be used for multiple commands that copy different areas of the file or even for multiple recovery attempts over different subsets. The software aligns its I/O buffer to the sector size for efficient use in reading from raw devices. If the page size is a multiple of the sector size, DDrescue aligns it to the memory page size for better performance.
In summary, DDrescue is an automated software that comes with advanced features for data recovery operations. Its automatic merging of backups, periodic saving of the logfile, and flexibility in the recovery process make it stand out from other data recovery tools.
Version 1.11: N/A