Verbatim Verbatim's just! :-)

These blanks are absolutely great! Processing very valuable with rounded edges. Not one so far "verbrutzelt"!
If prices would still fall somewhat, it would be fabulous! :-) When burning large amounts of data from today's "giant" - disks you need quite a few more blanks, which are then almost as expensive as a hard disk.
However, it is clear that the data on Blu-ray are more secure than an electronic medium.

Whether CD-Rom, DVD's or Blu-Rays for me blanks for many years, the first choice !! - Definitely the Verbatim

No data loss even after more than 10 years!

When do I want to give still following along the way, because I'm so always done well:

1. A little more expensive but safer: burn 2 discs of the same data. One is that archived as a working disk, and the other as a safety copy after firing in a DVD album and not touched.
Thus one can in case something happens to the working disk (loss or defect) to retrieve the data back.

2. Always burn with low combustion speed! Taking a bit longer, but the risk is low that the data transmission does not work out and burn is unsuccessful. In addition, BR focal depth is also better and safer than years for the data.

Hope to have helped somewhat and hereby wish everyone "good and successful burn" -D