都可以設Booktype，
1U9 韌體我燒了約30片左右，感覺不錯，afa 8x +r 可上12x，而且也沒有同心圓出現。
1ua 韌體我昨天才下載並更新，已燒了兩片，感覺跟 1u9的差不多，

LD3520 1.UA
RIPLOCK REMOVED for fast DVD ripping

LD3520 1.UA QUIET
RIPLOCK enabled for quiet DVD playback on your PC. Please note, this will only playback slow on pressed DVD’s. DVD-R and +R media will still play at full drive speed. This is a feature of the STOCK NEC firmware.

Both firmwares share the same strategy edits and speedups.

Changes :
Now packaged with Binflash 1.15
RITEK F1 – F5 speeded to 16X
PRINCO 2X speeded to 4X
PRINCO 4X speeded to 8X
RITEK R03 Rev 3 speeded to 12X all other revisions remain at 8X
Full media table included in the documentation

Disc Quality scans can be submitted with (Liteon drives) using K-Probe @4X scan speed or CD-DVD Speed (disc quality) @4X scan speed.