I recently got a 50 pk spindle of verbatim dvd-r, MCC 03RG20 (made in india).
I bought this drive 2 months ago, and haven't burnt any dvd's with it until now.
I am using k3b + cdrtools on linux.
Firstly i tried burning at 12x, but the speed barely reached 8x.
Now, i tried burning at 6x, but after the burn i see messages such as minimum drive buffer fill was 60%, burn-free was used 16 times.
I tried checking the drive speed with kprobe2 and it shows that the burst rate is ~40 MB/s. Any idea why i am facing so much fluctuation in the buffer?
PS: I have cross-flashed it to iHAS524B AL27, but the problem still remains the same.