silver/silver CD-Rs are VERY common, and are manufactured by MANY different companies, and distributed by several brands.
If you find the media you purchased is not up to your standards, I suggest finding out the ATIP of your media, so that you can figure out who manufactured it, and then make sure to avoid that manufacturer in the future.
Nero's Info Tool will usually do a good job of telling you who the manufacturer is. The info tool is located in the Nero "Tool Box"
Punch Cards -> Paper Tape -> Tape Drive -> 8" Floppy Diskette -> 5 1/4" Floppy Diskette -> 3 1/2" "Flippy" Diskette -> CD-R -> DVD±R -> BD-R
The Progression of Computer Media