811 and 812

What is the difference between the 811 and the 812? Does one burn better than the other?

811s
Write : DVD+R 8X(10800KB/sec) by CLV
*DVD-R 4X(5400KB/sec) by CLV
ReWrite : DVD+RW 4X(5400KB/sec) by CLV
*DVD-RW 2X(2700KB/sec) by CLV
Read : 12X(16200KB/sec) maxmium by CAV

812s******
Write : DVD+R 8X(10800KB/sec) by Z-CLV
*DVD-R 8X(10800KB/sec) by Z-CLV
ReWrite : DVD+RW 4X(5400KB/sec) by CLV
*DVD-RW 4X(5400KB/sec) by CLV
Read : 12X(16200KB/sec) maxmium by CAV

Besides the speed difference on -R/-RW the 812S is a higher quality drive (yes overall it “burns better”).