Ridata DVD+R 8x media only burning at 4x?

I recently purchased a cake box of 100 Ritek RIDATA 8X DVD+R discs, to use with my new Lite-On SOHW-1633S. (a 16x burner)

For some reason I’m only given the option to burn at 4x with these discs, in the latest version of Nero.

I updated to the latest Firmware, BS0C, but that doesn’t help.

Whats going on? Can anyone help?

Can you show the Media Code, use DVDInfoPro for this.

I bet they are RITEK R03-01
I got burned with a 50-pack of 8X Ritek 8X DVD+R that was RITEK R03-01
Only good for 4X in the Pioneer A07 or A08. The RITEK R03-02 will burn at
8X, though. (version 2)

From DVD Info Pro:

                        Media Information                            

Region information N/A not a DVD-VIDEO
Media code/Manufacturer ID RITEK R03
Media Product Revision Number 02h
Format Capacity Blank Disc
Free Blocks 405405696
Free Capacity 4.38GB(4.70GB)
Book Type DVD+R
Media Type DVD+R
Manufacturer Rated Speed 8.0x 11080KBps
Available Write Descriptor CLV 4.0x 5540KBps
Data area starting sector 30000h
Linear Density 0.267um/bit
Track Density 0.74um/track
Number of Layers 1

I have found the older 1633 firmware has problems burning alot of media at overrated or even sometimes rated speeds and burns really poor. You may want to look at BSOH at Codeguys.