I guess I'll have to bite the bullet and get a BD burner soon, does anybody here have exp with using BD for storage? How are they holding up?
I have two BD-R drives. Much like with DVDs, I use a good quality media: pretty much all of the good DVD brands also make good BD-Rs, e.g. Verbatim. I store the discs in a cool, dry place away from sunlight (disc binders). After about four years I have had no problems reading any disc I have burned.
Blu-ray discs have two advantages over DVD. First is size: a single layer disc holds 25 GB, or approximately three times as much as a dual layer DVD. Dual layer discs hold 50 GB, or approximately six times as much as a dual layer DVD. This drastically reduces both the annoyance of burning (sitting at the computer swapping discs) as well as the amount of physical space required.
The second advantage, which I wish applied to other media as well, is the scratch-resistant coating. Due to the much tighter storage density as well as the thinner layer of plastic required to get the laser closer to the data surface, a scratch is more serious for a Blu-ray. To help with this, they use a much more durable plastic that does not scratch easily unless you are deliberately gouging the surface.
For commercial use, go with tape. For home use, I love my BD-R. A 50 GB BD-R disc holds plenty of data for a home user, is durable, and can last years under residential conditions.