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Low Quality Discs Made In China By "UME Disc"
Reviewed in the United States on July 8, 2019
Burnable media quality has drastically dropped across the board in the last 5 years; especially in this category: "Dual Layer DVD+R's"
Single layer dvd-r's hold up to 4.1-4.5 gb of data. "Dual Layer discs" hold up to 8.5 GB; allowing much higher video quality or more files.
I am somewhat of a fanatic about quality. When I first started burning discs; I had a batch of 50 go bad in less than 6 months due to fading dye (the discs are burned by a laser writing on the dye; the dye quality is one of several factors that determines the quality of a disc). As a result, I now run a quality scan on every disc I burn.
Back in the day, I considered a quality single layer burn (scanned with Nero disc quality software) to be no worse then a "quality score" of 95 with no more then 100 "PI Failures".
With the drastic reduction in quality by every company I am aware of, today I will usually accept a 93 score & up to 1000 "PI Failures" + anecdotal information on longevity if it's not a Tayio Yuden. Average burn quality for a CMC made Tayio Yuden disc (the best that's left afaik) averages about 95/800 for me these days.
It's been at least 10 years since I've been aware of any dual layer disc that wasn't junk. Again, way back in the day, I would accept 93/1500 for a dual layer. Today I don't know of any disc that comes remotely close to that.
Before trying some test burns, I first did some research on the discs. The "Manufacturer's id" is UMEDISC DL1-064. They are made in China by UME Disc. From what I could find they first popped up on some budget priced Chinese Dual Layer Verbatim's in 2011. Apparently, Verbatim stopped using this dye & manufacturer by the end of 2013. It now appears to mostly be used in budget European brands that I am not familiar with: names like Data Write, Tesco, Intenso, Aone, Nierle, & similar.
Most reports were that they were of poor quality.
So I did some test burns on a high quality Optiarc 7200s. Not good. Because I know DL's have had problems for years, I first did a small (3.4 gb) single layer burn at 6x. The result was total score: 77; "PI Failures" 4216. Ouch.
I then tried a 6.28 gb dual layer burn (that's still leaving 1/3 of the bottom layer unused; which like the 3.4 gb single layer burn will give an artificially high score). While the results were not good, usually a dual layer's big weakness is shown at the layer break (& may often become unplayable at that point). I will say that did not happen with this disc. In fact, the worst part of the disc was the beginning. I would not suggest putting anything important on here, but it will likely play for at least a few months in most players. Results: Score: 84, "PI Failures" 8372.
For the sake of thoroughness, I then moved to a different similar pc that has a brand new Optiarc 5290S+ (which I have noticed is usually of lower quality than the 7200s, but it is a different combination). I burned these discs at 8 x.
First, I burned a 4.13 gb film (single layer). Results: score of 77 (identical to the other 1st layer), "PI failures" 6417.
Then for the dual layer I had my burn quality software create a test disc. The test disc uses the entire 8.5 gb. The speed varied from 4.26x - 8.1x (the software sets the optimal burning speed for the test disc). This one showed major problems at the layer break. As it's data, I can't "play" the disc to see how bad the issue is, but it dropped from around total score of 80 to total score of 33 at the break; my educated guess is it would freeze in a player at the break. Results: "Quality Score" 33, "PI Failures" 32,375.
My recommendation: When I ordered these I had no idea what manufacturer Amazon was using; & due to the total lack of quality dual layer discs on the market, I had hopes. They were 100% dashed. To repeat myself, at this time I am not aware of any dual layer brand I would use for discs for myself. The best I am aware of for single layer burns are the reduced quality CMC DVD+R discs with Tayio Yuden dye, likely followed by Falcon/fti; which have also gone quite downhill in the last few years. Same with cdr's.
Important note: while I prefer the 8x's & "+'s" over "-'s"; Amazon shows that they still have stock on 16x TY - DVD-r's & also JVC TY CDR's. I would suggest confirming with Amazon that they are truly JVC's; & if they are & you need quality discs, while not as good as the original TY's the JVC's are much better than the CMC's (CMC bought TY from JVC around 3 years ago). Amazon also carries the Falcons I mentioned above. I haven't used them in several years. At one time they were quite good, & then they started to go downhill.