Hi BitFreak, welcome to CDFreaks!
I'm guessing this could be the result of changes introduced in CDSpeed 18.104.22.168:
- Replaced 'Write and Verify' option by 'Streaming' option
Try going into CDSpeed Options => Standard tests => Transfer Rate and change the Streaming option (I'm not sure whether it's supposed to be on or off in order to disable the write-verification of DVD-RAM).
EDIT: Streaming enabled should be the same as write-verification disabled.