Thank you for answering, but I am not sure if you understood what I mean.
When the disk-to-tape job starts, it will by default read the files created under the disk-to-disk job.
If it can read the file, this would most likely be the same as running a verify job resulting in "OK".
If it can not read the file, this would most likely be the same as running a verify job resulting in corrupt file / file unreadable.
Then, running verify on disk-to-disk would be excessive.
Or, have I completely misunderstod the functionality of Verify ?