Your comments

"The user will be required to have the files list open" - how else the user will see the calculated checksum? The hint will be displayed only after testing a single file.

As a workaround, you can create Flush.cmd file with the path to flush.exe in TeraCopy folder and select it in On finish menu when you copy to a DVD disc.

Please disable Use system write cache option and try again. I'll check the flush app.

We will add a few hints like this:

It will be one tab - Ora board shows already implemented functionality. The verification speed indeed is very useful, we'll add it soon.