How long do Blu-rays last?

[mrbones]

That's a really good point, I've never considered it before when it comes to physical media. I've always just assumed that disks would last long enough, and that I always worry with digital media about the service one day shutting down and loosing access!

[AmishParadise]

To date it's only been pressed discs that have gone bad on me, albeit a very, very low percentage of them and in each case other people online had the same issue with the disc(s) in question, i.e. bad pressings. I backup everything I own to BD-R. Not a single BD-R has turned sour on me. In fact, not a single DVD+R has turned sour on me and we're talking about backups I made during the early years of the DVD format. Personally I don't understand why so many on these forums get their panties in a bunch over BD-R releases. To each his own naturally.

[AkinaSpeedstar]

I believe 100 years if kept in good condition.

[sexylust]

Manufacturers claim a life span from 100 up to 150 years.

[Ceasardelao]

The oldest blu-ray I own is 11 years and it still plays perfectly fine. I imagine the discs longevity mostly revolves around maintaining/lack of scratches.

[JJ]

I've had four discs stop working on me, but it turns out they all had pressing issues -

Paramount's Cloverfield, FaceOff, Spiderwick Chronicles, and New Line's The Orphanage - all bought between 2007-2008.

Clear signs of disc rot on the underside.

Replaced them all with newer pressings. None of the other movies I've bought from back then have had issues.

[cerealtofu]

As others have said, blu-rays are currently rated 100-150 years, though we'll see in 20 or 30 whether that really holds up - I believe CDs were originally marketed as long-term storage, which was significantly downgraded once people started seeing disc rot irl.

It's worth noting that any physical media is subject to enviromental conditions. Excess heat, humidity, or direct light will accelerate the degradation of anything. I stored some stuff in a place that I wasnt aware experienced extremes of heat and humidity during the summer, and some otherwise clean DVDs became coasters.