It was a long time ago, but I could swear when I got these they were 4X, but I will mark them 8X, sorry. That was brand new 47F9, right out of the box. Just flashed from 47F9 after using MCSE on RPC1 47L9.
ImgBurn Version 18.104.22.168 started!
Microsoft Windows XP Professional (5.1, Build 2600 : Service Pack 3)
Source File Size: 4,681,428,992 bytes
Destination Device: [0:0:0] BENQ DVD DD EW162I 47L9 (patched) (L:) (USB)
Destination Media Type: DVD-R (Disc ID: TYG02) (Speeds: 2.4x, 4x, 8x, 12x, 16x)
100 spindle 8X
Write Speed: 8x
Operation Successfully Completed! - Duration: 00:08:16
Average Write Rate: 10,181 KB/s (7.4x) - Maximum Write Rate: 11,158 KB/s (8.1x)
Operation Successfully Completed! - Duration: 00:05:17
Average Verify Rate: 14,421 KB/s (10.4x) - Maximum Verify Rate: 18,720 KB/s (13.5x)
Scanned with SH-S203B SB01 (patched) @8X