[slantyyz]

The main downside is that MDiscs have a max capacity is 25GB on the Blu-ray.

I have some myself, but I can't attest to the life span, since I've only had my BDR for about a year now. How does a normal person prove the lifespan claims of an MDiscs other than waiting?

I still find myself burning most backups to 50GB disks, and making redundant copies of only my most important stuff to the 25GB MDiscs.

Where I live, a 3 pack of 25GB MDiscs runs around $20 vs $70 for a spindle of 25 RiData 50GB discs. That's ~6.66/25GB MDisc vs ~2.80/50GB BDR. Not a huge premium for piece of mind, I guess.

[hsshah]

I see that they have 100GB BDXL MDisc available now. Have to invest into BDXL writer but that's just one time investment.