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I bought these discs after i ran out of my Amazon Basics ones, and these were of even better quality and I have found them to be extremely reliable. They're not Ri Disc, but for around £16 or £17 they are cheaper than the AAA quality ones, without much compromise at all.
These discs are perfect for backing up files or moving files around an office, I personally use them for MP4 files from family holidays, they can be burnt onto the discs as actual files to be read in a computer or Xbox as well as just being burnt as a long movie with chapters.
I have never had a coaster out of my 100 pack, these have burned exceptionally well in a super write master drive, and have proven to be versatile even at the maximum 16x speed. Burning at lower speeds will allow buffer under run to work a little better on the cheaper discs but these can be burned at full speed without fault. I have never had any data loss or corrupted files on these discs. Files can also be stored as Zip, and despite compression they have also turned out alright when loading them back off the disc.
Playback quality is excellent, movies and audio files don't loose their quality and still maintain full 1080p quality if recorded in HD. The discs play back at a normal speed, no faster or slower than what I would normally expect. These run in my DVD player without incident, and can be played for hours on end without glitching.
The discs are made from a very strong plastic and are well balanced. Their tops have the usual mirror branding on, although they do sell a more popular inkjet printable version of this DVD, although i just find it easier to write on or stick a sticker on. The mirror logo on the top hasn't worn off, even after being subjected to heat in a DVD player and after burning. There is plenty of space to write on this disc, as they have provided lines at the bottom, and there's a ton of blank space around the logo for you to write on.
The plastic feels smooth on both sides and doesn't have any bumps or deformities.
They don't scratch too easily either, they're not like tough discs but their protective layer means they don't get scratches when sliding across a desk. I quite often throw discs about, especially as my office is filled with far too many of them, and just chucking them about causes no damage, you do need to actually abuse them with a lot of force in order to actually break them. Poking them with sharp objects will damage them, so keep them away from staples and pins.
Overall a great quality disc, highly recommended for the price too, they're no better than RiDisc but they are excellent value for money.