Millenniata 4.7GB M-Disc Write Once and Read Forever, Read 16x/Write 4x Speed, 10 Pack

I knew my LG 14x burners were approved to burn these "M" disc. I had to transfer files I needed to though the router. After the disc burned perfect, verified and surface check. I got tired of waiting for the files to transfer, from the other computer, and then I used the LG WH10LS30 burner in that computer that I have most of my files. It recognized the disc right away, burned and verified without a hitch. If there is anything negative other than the price per disc, it's that there is no place to write anyplace on the disc but on the white ring. Burned a total of 6 disc, no coasters. Hope they do last long, only time will tell. A Blu-Ray version is suppose to be coming out soon. I hope it's about the same price. I see on the net where they have a ink jet printer version for about $1 more a disc. Using Nero 12, and Power to go on the 10X LG burner.

Of course there's no way to tell if these will really last for a thousand years but they did perform as advertised. I tested a disc in my M-Disc capable duplicator using a standard DVD master with about 3GB of data on it. It writes at 4x speed but it really didn't seem to be too long.I then put the etched M-Disc in the DVD drive on one of my computers and I was able to read the data easily. Read speed was satisfactory.These discs are tinted but transparent. That is there's no label surface and you can literally see through the disc. Not sure if the transparency is a necessary attribute.I was concerned on how to label the finished disc so I searched online and the only recommendation I could find was to use a hub type label or use the storage case the disc comes in. That way, it doesn't affect the transparency. (I ordered 10 - Of course, this won't work for folks who purchase M-discs in a spindle type case).I don't like putting stick-on labels on discs as they can cause the disc to be out of balance and create reading issues. If the testing data is valid, these discs can provide data storage that will outlive you and generations to come. I'll update this review in a thousand years after I test the disc again. :-)

I bought a pack of these a while back and opened the package for the first time only to find that they are loosely packed with some spin like mechanism that is supposed to hold the discs securely. NOT THE CASE. most of the discs are trashed and scratched very badly!I'm pretty upset considering the price of these discs! they DID NOT come in the pictured packaging. some cheapo rectangular disc package similar to what dvd's come in. the discs were stacked on top of each other (this is fine) but the securing mechanism failed allowing the discs to fly around inside a package not designed to the shape of the discs. BEWARE, open the package immediately when you get them to check. I've had these a couple months now and they havent moved since I got them. But over half of them are trash. :/

Had to return it because it wouldn't work with my computer - but I think it may be my computer and not the discs.

The discs arrived in a shrink-wrapped package of 10 individually encased discs, not a spindle stack of 10 loose discs as pictured. At the hub of the very first disc I used, the plastic cracked and split during removal from its case. This m-disc plastic is much more rigid than /any/ other disc I recall ever using. Such rigidity does not seem to be a necessity for m-disc either, as the m-disc Blu-ray discs I bought at the same time have "normal" flexibility. Needless to say, I'm disappointed in the construction/durability. It's also difficult to write a label around the center hub in what Millenniata's website says is the "preferred manner" for labeling m-discs. (These particular discs are not printable.)

I had always wanted to try this type of disk out for storing pictures of our babys and dogys and anything else of importance. Documentsthat we want to keep etc..We also use and keep an extra computer with a drive that can read and write to this kind of DVD in Case like for example it goes off the market or in case computers like Apple stop using DVDs. We want to make sure we have something 50 years from now that will work.One other note. We also purchased a product from a company called Callas that makes Not just PDF files for Images and or documents but a format called PDF/A . The /A is for Archive. It is a tool that checks and makes sure that fonts are imbedded and that the format is perfect as some companies that make or generate PDF files do NOT do it right and it may not be comparable. Like the M-Disc DVDs the idea of PDF/A is that the standard will always be available and even if changes happen to the format it will always read and be backwards compatalbe with ANY PDF/A PDF file.. A great way to make sure you can open and view the products 50 or 100 or more years from now.At that point most likely the contents will be transferred to some new technology but the point is you will be able to. So having a disk that is good for 1000 years and using a format of PDF/A is a great combination. And keep the old computer stored in a Metal container if you can.Jim Davison

For friends and business owners. I use them for the really important files. Pictures and documents, usually.

They burn with no issues.Burned 5 with all the same info in multiple formats and placed them out in the sun this summer, checking them once a month, so far haven't had any issues. Will keep those 5 outside to see when/if they fail. I probably won't be around in 1000 years to see if they last as long as they advertise but if they do and there is a computer around that can read the format, my family, or some archaeologist, can be very bored looking at my pictures and old tax records.