Here are some empty optical discs (CD, DVD, Blu-ray) I have used for burning backup copies, Linux distros, etc.
Sony DVD+R
DVD recordable. 1x-16x speeds. 4.7 GB. Sony.
TDK CD-RW
CD rewritable, 4x-12x speeds. 700 MB, 10 discs. TDK Recording Media Europe S.A., Z.I. Bommelscheuer, L-4902 Bascharage, Luxembourg. www.tdk-europe.com.
TDK DVD+R
DVD recordable. 1x-16x speeds. 4.7 GB. 10 discs. TDK Recording Media Europe S.A., Z.I. Bommelscheuer, L-4902 Bascharage, Luxembourg. www.tdk-europe.com.
Verbatim BD-RE DL 50 GB 2X Blu-ray
Blu-ray (BDXL) 50 GB. Dual layer rewritable. 5 discs. 4/2013.
Last modified: May 17th, 2013
Author: Tomi Häsä (tomi.hasa@gmail.com)
URL: http://sites.google.com/site/tomihasa/optical-discs-empty