Bought these in 2018. Very pleased and excited that i was able to make copies of every dvd that i had onto these m disk.For my own experiment, i had some extra m disk left, so i made a extra copy of one of my dvds onto an extra m disk that I had left over and i put put it outside, completely exposed to the natural elements of nature ALL WINTER from the day before winter started until the day after winter officially ended (i live on the east coast where at one point in the night it was -10 degrees below zero) then bung the dvd back inside my house to let it dry out for three days. I just popped it into a portable dvd player and it still works!!!!Im planning on taking the same m disk and setting it outside all summer. I will bring it inside the day after summer ends to see if it still works. Ill keep you posted. Thanks a million.

This is my first purchase of M disc media, so there are a lot of things I don’t know about it. I don’t know what a ‘branded surface’ means, or why that is important. I was looking for a way to store 100 year old family photos and I knew that dye based DVDs have a limited life. I was able to burn a disk with these photo images on it, access them with both the original drive used to burn the disk and also view the images on my television using a bluray player. M disc in general seems costly, I wish it was cheaper so I could use it on a routine basis. This product cost wise is headed in the right direction.. How much are archival properties worth? Quite a bit, I think.

Can't really know if they keep data for 1000yrs as any M-Disk, but was a fast shipping and worked well on my M-Disk burner.

Excelente disco, Justamente lo que necesitaba, almacenamiento a largo plazo. 1000 años.

Great product. Just as advertised and worked great.