Questions on verifying BD-R speed + PTRobot DLLs for Bravo SE

[BlizzardUK]

So I burnt about 50 BD-Rs (some burnt via my Bravo SE and some via my Pioneer X12), done last week, and when I verify each one (separately later using the verify vs ISO option in IMGBurn, so not directly after burn), some will verify at full speed, but many only verify at 2.0x speed, why would this be ? Seems odd that it sticks at 2.0x for the entire verify, but not on all of them, it is about 50/50 on which ones will verify at 2x. All verifying done via my Pioneer X12 using USB3. 

Also, I notice the PTRobot DLL files are newer on the official Primera website to the ones in the support page here that I am using, can I just copy the newer ones from the Primera website to my IMGBurn folder, or are the ones on this forum specially modified for IMGBurn ? 

Thanks. 

 

Edited March 30 by BlizzardUK

[dbminter]

Yeah, Verify speeds on BD-R are stupid.  While I've rarely seen 2x, I have seen some that start at 3x and then cap out at 4.  And it is entirely random.  Sometimes you get really good Verify speeds that start at 5x and then sometimes you get really slow ones.

[LIGHTNING UK!]

You can use whichever dlls work for you. 
 

look at the log window when the verify operation begins. It should tell you the read speed the drive is meant to be using. 
 

if it decides to slow it down for some reason, it’s probably related to the readability of the disc.