Blu-ray Backup

Blu-ray backup

The Blu-ray Disc is a good storage medium for personal use. It has a very long lifetime of up to 30 years when stored optimally and has an enormous capacity and recording speed compared to DVDs.

Blu-ray Discs are only beginning to replace DVDs and their full potential has not yet been reached: currently available Blu-ray Discs can store up to 50 GB of data, but the capacity will increase rapidly in the near future, with manufacturers announcing 1 TB discs for 2013.

Blu-ray Disc Medium

Blu-ray – Optical Storage Device

The most evident advantage of optical discs compared to hard disks or SSDs is that the disc only has to be inserted into a drive when it's used, minimizing wear on the disc. And contrary to hard disks, Blu-rays can be used with another drive in case of hardware failure. Blu-ray Discs also have a harder surface protection layer than DVDs which makes them more resistant to scratches.

Currently there are Blu-ray drives with 6x and 12x writing speed (27 MB/s and 54 MB/s). 12x blank mediums have not yet been introduced. By calculating the prices per GB, it becomes clear that Blu-ray discs can compete with other optical and mechanical storage devices:

As of February 2012 DVD-R/DVD+R DVD-R9/DVD+9 BD-R 25 BD-R 50 SSD 2,5" SSD 2,5" HDD 2,5" HDD 2,5"
Max. speed 16x (22.16 MB/s) 8x (11.08 MB/s) 6x (27 MB/s) 6x (27 MB/s)
Capacity 4.7 GB 8.5 GB 25 GB 50 GB 64 GB 100 GB 500 GB 1 TB
Average price per medium 0.30 $ 0.90 $ 1.50 $ 8.00 $ 40.00 $ 120.00 $ 80.00 $ 100.00 $
Average price per GB 6.4 c 10.6 c 6.0 c 16.0 c 62.5 c 120.0 c 0.16 c 0.1 c

According to the manufacturers, Blu-ray Discs can keep data between 30 and 50 years. Tests have shown that burned data will surely last 15-30 years.

Blu-ray Discs support many different file systems. For backup purposes, we recommend UDF 2.5.

Some advantages of UDF 2.5 (Universal Disc Format):

  • File names can be up to 255 characters long
  • No nesting depth limit, up to 1023 characters in a path
  • 8-bit and 16-bit character sets are supported
  • File names can be case-sensitive
  • It can store the extended file attributes of many operating systems
  • no meaningful limitations on maximum file size and maximum volume size (several exabytes)

The currently available 6x blanks should not be recorded with 12x speed, otherwise the data may be unreadable.

Blu-ray Backup

Backups to Blu-ray Discs with Z-DataBurn

Our burning software Z-DataBurn can copy files and folders to Blu-ray discs. The program features a user-friendly graphical interface and can also be started with command-line parameters for fully automatic backups, i.e. from a batch file or shell script. It can easily be used with our advanced task and backup scheduler Z-Cron or the Windows-builtin Task Scheduler.

Z-DBackup and Z-DataBurn combined allow for elaborate backup strategies such as versioned backups, differential/incremental backups etc. The file lists can have blacklists and whitelists as filters and the data can optionally be encrypted and/or compressed. Large backups can span multiple Blu-ray mediums (multi-spanning backups). For further autokönnen mation, a wide variety of actions can be defined that are executed automatically before or after each backup.

Download Download the Freeware Version of Z-DBackup

Download Download the Freeware Version of Z-DataBurn

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