The simple answer is that the layout and info, in theory, should be the same.
The event (Baptism/Marriage/Burial) details were entered in the Parish Register, which remained at the Church.
A copy register was then transcribed from the original (could have been done concurrently or up to a year later, there's no way to know) and that copy was sent to the Bishop at yearly intervals.
as the BTs were a transcription, copying from one book to another, there is always a 'possibility' that some entries 'may' have been mistranscribed or missed altogether.
If you have these burial records 'on file' do you also have a note of where you found them? If you want to know for certain if they are PRs or BTs you would need to backtrack and check the source.
EDIT -added
If these records you have are from the Diocese of Durham BTs (as per the link Hanes Telu gave) then at the top righthand side of the page there will be a Durham University Library ref in the sort of format as the one I've attached
Boo