Data handling capabilities of the deduplication hardware or software maintain a database of hash values – if more than one file is detected having the same hash as the other, the second and later copies of the file will be deleted and replaced with a ‘flag’ or pointer that refers to the original file, with the original hash value.
Blu-ray is no longer just a medium that is used for distributing movies and video games. For organizations big or small, and for users who need to store as much as 50 GB of data onto a single piece of media, Blu-ray media are ideal.
Data is now being stored by some users on offsite storage servers. However, optical media such as DVD still has some advantages over this option.