I'm new to blurays. I just tried to burn my first BD-R (drive Samsung SE-506BB, disc Ritek BR-3 marketed as TDK). And this is how it looks. Some kind of blurry smudges from center, like psychedelic patterns from late 60s.
I don't know if this issue with discs or something wrong with drive? I tried to find answer on forum on similar question, but I don't have idea how I should name this strange looking surface in english.