Yay for M-discs

[kengr]

I've just finished burning my first M-disc. It's a 100 gig BDXL.

It took an hour and a half to burn, and another hour for the burning software to verify the disk.

I'm now using Beyond Compare to compare it to the directory the files were burned for. when that completes, I can nuke them and the "original" copies on my far too full media server.

It'd be cheaper to use 2 50 gig M-discs or even 4 25 gig ones. but it's worth the extra money to have fewer discs to store.

At least with M-discs, I don't have to worry about the discs going bad from age, sunlight, or whatever. Just physical damage.

Gotta by more disks (of various sizes) to continue moving stuff off the sever (mostly old TV shows and some movies).

Comments

[siliconshaman]

Huh, was not aware of that format disc... thanks! I could use those.

[kengr]

Just make sure that your burner is rated for them.

There are 4 sizes:

DVD-R 4.7 gig
BD-R 25 gig
BD-R DL 50 gig
BD-R XL 100 gig

I love that one of the cartoons for safe handling has one sitting in direct sunlight with a check mark, rather than x-ed out. :-)

As I understand it, the data layer is essentially rock (obsidian or something?).

The burn side is *black* before you burn it and the burned areas are silvery gray after burning.

Now we can burn discs that are as stabled as *pressed* ones. Actually, *more* stable.

[siliconshaman]

Reading the wiki, the 'weak' point is the polycarbonate support layer, which has 'only' a half-life of 1000 years.

They do, apparently, make a version that uses clear artificial sapphire as a support layer... with a half-life of approximately several billion years. It would literally last longer than the sun.

I am not sure what to think of that.