Hello Dima Sir,
1) First of all thank you for your attention. I observed that the reported problem is solved but only for burn progress value.
2) Still the problem is there for used buffer value.
3) Even while verifying data repeated progress values are reported.
4) One more thing, for burning a ISO image of data around 3.5 GB it took 14 minutes & for verification of the data it took 15 minutes.
I think for verification of data it should take less time.
5) Problem can be simulated in normal case for any image burning with verification.
I have readings from studio for image file burning in Samples provided with SDK V12 as follows,
14 min were required for burning & 15 min for verification.
Release mode custom log:
DoBurn Started : 18:20:40
DoBurn Completed : 18:34:56
DoVerifyData Started : 18:34:56
DoVerifyData Completed : 18:49:05
Thank you Sir.