Yes sorry but I confuse Ridisc with Ritek. They are Ridisc.
So apart from fakes are all MID tagged disks basically the same under the branding/label colour.
I have a TDK 440N drive also available, any better for scanning prehaps..
The disk above is not a coaster, it contains just a simple cartoon that autoplays on the Panasonic DVD player ok, no errors that I can see but the image quality is simple anyway.
Thinking of buying some DAtawrite Mach4 dvd-r in a minute, cheap but look ok quality