Verbatim M DISC BDXL 100GB 6X with Branded Surface Blank Blu-Ray Recordable Media – 5pk Jewel Case Box,Blue

I bought Verbatim M-disc for the first time to back up my extracted movie Blu-ray ISO. I was worried that it would fail when burning the disc after reading reviews online, but with the right software and a good burner, this disc is very reliable.I bought 25 spindles of 25GB SL discs, and 25 out of 25 discs were burned normally without any errors! Wow!The quality of Verbatim BD-R is undoubtedly good... but the price of M-disc Blu-ray seems a bit too expensive IMO.In the old days of DVD, organic dyes were used, so M-Disc had the advantage of using inorganic dyes to enhance the durability of preservation, but most Blu-ray discs, except for LTH discs, are manufactured using the HTL method that uses inorganic dyes same as M-Disc. Unlike DVD, the M-Disc BD-R discs doesn't require any specific burner and fully compatible with normal bluray recorder. Base on these facts, I don't think the difference between the M-Disc bluray and "normal" HTL bluray discs is big in terms of durability.The price of 25 M-Discs BD 25GB is $65. On the other hand, the price of 25 25GB HTL "Inorganic Dye" BDs manufactured by the same company is $23, while Amazon Japan sells 50 discs for the same price!If there is not much difference between M-Disc and regular HTL, there is no reason for Verbatim to maintain the production line for this disc after Millineta, the creator of this format, went bankrupt, but even considering that, I think the price difference between the two is too much.Of course, I think the quality of the Verbatim discs themselves has been proven this time, so I plan to buy Verbatim Blu-rays again next time (in fact, as of the time of writing this review, the Verbatim discs I ordered from Amazon Japan are already on their way!)Maybe in a few years, I will write a second review of M-Disc and advise you not to repeat the same "mistake" I made just now. Who knows? Only time will tell.For those who want detailed information...The software I used to burn my disc is ImgBurn and I burnt all my discs with 4x speed.All the discs I burnt are verified after the writing is finished.The disc burner I used is LG WH16NS40 with external enclosure (Vantec NST-536S3-BK)I also attach photos of the discs before and after recording.

Edit: Forgot to mention I used it on Windows 11 with Verbatim drive and Ashampoo Burning Studio 26 with no problems (burned 8 discs so far with zero failures).Old: Still works even if you use a flat head screw driver and use the corner pointy edge and shred the disk, I tested it on one to see how strong these things are so I can have proof that they truly are legit and sure enough they are :). Every single disk has been error free and flawless btw.

Archive quality M-DISC dual-layer DVD blanks are not inexpensive but they burn correctly in my device. No coasters with these.

As always, Verbatim is a guarantee of working fine. This ones (MDISK) are the ones that should be working for long years compared to the standard ones that maybe they last 10 years

Excellent back up media. Supposedly a 100 life expectation. Lots of space for your huge files.

One of the discs didn't record the information.

I like the fact that "M-Disc" is printed on the inner part of the white surface.This way I have confidence they really are M-Disc. I like the ones that have the white surface because I can run them through my Epson printer. Never use a label on a disc. These are excellent for long-term storage. If you burn something that is not M-Disc, view it as a temporary.

I've purchased a few batches of M Discs over the years. There is something blatantly different about the latest stack I bought December 2023 and it turns out I'm not alone.Verbatim is not being transparent about this, but as some reviewers suggested (and discussed on forums with 1,000s of upvotes), the company is now smacking the M Disc logo on regular blu-rays and selling them.While others have done a deep dive on their manufacturing, or visible differences between old and new M Discs (color, label, etc), I found out with another method: destruction!In years past I've recorded dozens of M Discs, but had to destroy one or two. Maybe certain files were incomplete or missing or outdated, and I no longer wanted that M Disc to be my archival copy despite thinking it at the time.Instead of just chucking it, I would destroy the M Disc for security reasons, and replace it. Those didn't break easily. They're tougher to snap or pass through a household shredder. They were stubborn to break, or at least more stubborn than a standard blu-ray.Not anymore. Recently I had to replace a newer M Disc for whatever reason, and it snapped like butter. Passed through the shredder like a credit card. That alone makes it obvious Verbatim has backed down on quality, if not the efficiency, of M Disc and its stated purpose.For further consideration, see my images for the visual differences that could be clue enough (left is an older M Disc, right is recent).