If you search in source code for "RecordBegin(RcVc" you will see all the fields that you can use. The "flags" go from 1 to 29 so anything higher than flags[29] will not work.
So the mystandard have gotten a face lift.
So when the backup is triggered, thats the time when a "snapshot" is taken from the system and written down to the backup (.TXT file)...