BD-R or Blu-Ray Recordable discribes a disc which can be described with Data once and this can not be changed or deleted anymore. It is the same as CD-R or DVD-R.
Blu-Ray Rewritable - BD-RE
BD-RE or Blu-Ray Rewritable. This kind of Blu-ray disc offers the possibility to change, overwrite or delete the saved data anytime. It works just like a CD-RW or DVD-RW.
Blu-Ray 25GB and 50GB
BD-R or BD-RE media have a memory capacity of 25 GB.
The newest technology has made it possibleto produce Blu-Ray media with help of the double-layer-method. This media can save data on two layers just like normal double layer discs. With this method you can reach a memory capacity of 50 GB. In future this method will make memory capacities of 200 GB (eight layers) possible.
Blu-Ray Media-Types
BD-R
BD-R DL
BD-RE
BD-RE DL
Speed
1 to 6x
1 to 2x
1 to 2x
1 to 2x
Capacity
25 GB
50 GB
25 GB
50 GB
Important!!
Blu-Ray media can only be used in a special Blu-ray burner. To useBlu-Ray DL media your burner needs to have a DL function as the discs can not be used.
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