Back up yo ur arc hives
When is a backup not a backup? When it’s the only copy of a file you have. Archiving data usually means transferring it to a new medium for long-term storage – an old external hard drive or DVD or Blu-ray disc, for example. Make sure you remember to back up your archive, too – burn another disc and then store it somewhere separate to the original archive to protect against fire or theft. If you’re compressing files to save space, make sure you keep a back-up copy of the file in its original format, in case the ZIP archive becomes corrupt.