Jlms dvd reader

just wondering with my jlms xh-h165h, is suppose to read dvd+r and dvd-r as by nero info tools (although i know it isn’t always accurate), my dvd drive had trouble reading these discs, my ritek g04, my ty + media (bitset to dvd-rom) i burnt that came with my burner.

all my disc have been checked with kprobe and are perfect. It just takes a while to recogninse, and when i sometimes do the transfer rate with kprobe, it fails, other times really slow, even slower than my liteon 832’s burner. thanks