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I am glad companies like Facebook is using Blue-Ray. Hopefully this will trigger progress in increasing density of optical discs and/or decreasing cost of high

by hsshah 11y ago

I am glad companies like Facebook is using Blue-Ray. Hopefully this will trigger progress in increasing density of optical discs and/or decreasing cost of high capacity discs and writers for consumer market. Eager to archive my yearly ever increasing personal media (thanks to having a kid) onto a high capacity disc and just store it in the safety deposit box.

harryf 11y ago
Awesome that all our dick pics are being stored forever. Future generations should not miss out.
bitJericho 11y ago
I don't know what the life of blu-rays are but burned optical cds and dvds have an estimated lifespan of only 10 years. Make sure you continue to keep up your backups! How I do it is I update my backups every few years but I also keep everything on functional and "hot" hard drives at all times (so I can see it's all still there). There's also http://www.mdisc.com/what-is-mdisc/ http://www.mdisc.com/what-is-mdisc/ but I've never used/seen it.
- dvdkhlng 11y ago
  The common Blu-Ray media (BD-R, not BD-R LTH) discs use a non-organic dye and should be more resilient than DVD-R or CD-R media. According to this source [1] 100-150 years data retention. Edit: note also, BD-R writers immediately read back and check written data, re-writing damaged sectors to a spare area. This in-hardware defect management should make BD-R more resilient against data corruption than DVD-R or CD-R [2]. [1] https://superuser.com/questions/251369/what-is-the-lifespan-of-dvd-and-blu-ray-discs https://superuser.com/questions/251369/what-is-the-lifespan-... [2] http://fy.chalmers.se/~appro/linux/DVD+RW/Blu-ray/ http://fy.chalmers.se/~appro/linux/DVD+RW/Blu-ray/
- gambiting 11y ago
  CDs and DVDs have horrible shelf life because they all use organic dyes. Some Blu-Rays do too, but you can still buy Blu-Rays with metallic dyes which should work for decades(panasonic BD-Rs are guaranteed for 50 years). In fact, do you remember the very first, early writable CDs? They all were blue on the bottom - that's because they used a metallic dye as well, I imagine 99% of those discs will be perfectly readable today.
- slantyyz 11y ago
  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 11y ago
    I see that they have 100GB BDXL MDisc available now. Have to invest into BDXL writer but that's just one time investment.

by hsshah 11y ago

harryf 11y ago

Awesome that all our dick pics are being stored forever. Future generations should not miss out.

bitJericho 11y ago

I don't know what the life of blu-rays are but burned optical cds and dvds have an estimated lifespan of only 10 years. Make sure you continue to keep up your backups! How I do it is I update my backups every few years but I also keep everything on functional and "hot" hard drives at all times (so I can see it's all still there). There's also http://www.mdisc.com/what-is-mdisc/ http://www.mdisc.com/what-is-mdisc/ but I've never used/seen it.

dvdkhlng 11y ago
The common Blu-Ray media (BD-R, not BD-R LTH) discs use a non-organic dye and should be more resilient than DVD-R or CD-R media. According to this source [1] 100-150 years data retention. Edit: note also, BD-R writers immediately read back and check written data, re-writing damaged sectors to a spare area. This in-hardware defect management should make BD-R more resilient against data corruption than DVD-R or CD-R [2]. [1] https://superuser.com/questions/251369/what-is-the-lifespan-of-dvd-and-blu-ray-discs https://superuser.com/questions/251369/what-is-the-lifespan-... [2] http://fy.chalmers.se/~appro/linux/DVD+RW/Blu-ray/ http://fy.chalmers.se/~appro/linux/DVD+RW/Blu-ray/
gambiting 11y ago
CDs and DVDs have horrible shelf life because they all use organic dyes. Some Blu-Rays do too, but you can still buy Blu-Rays with metallic dyes which should work for decades(panasonic BD-Rs are guaranteed for 50 years). In fact, do you remember the very first, early writable CDs? They all were blue on the bottom - that's because they used a metallic dye as well, I imagine 99% of those discs will be perfectly readable today.
slantyyz 11y ago
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 11y ago
  I see that they have 100GB BDXL MDisc available now. Have to invest into BDXL writer but that's just one time investment.