I have the book "Vital records of Norridgewock, Maine", printed in 2008. It contains a lot of transcriptions of old records from Norridgewock, but no photographs of documents or anything else.
It has a lot that I haven't seen elsewhere, but also, it does NOT have some records that I have found elsewhere.
Great items it has are listings of many or all of the children born to a certain pair of parents. Too bad for me, that after I bought this expensive book, the listing for my family seems to be the only one in the book where it says : [blank]
I had some of that info, but of course, I wanted to get what I am missing, and what I may be missing.
There are also transcriptions of statements saying that on this date, these two people had their marriage intentions published. The text from the actual intentions are not in this book. I have not seen those elsewhere. There are thousands of these, as well as marriage record transcriptions, from 1792 to 1891. Those comprise the bulk of the book.
There are also births and deaths. The births go back as far as the 1790s. The deaths go from 1774 to 1891. There are some missing years.
Again, you can be sure that not every single death that happened during that time period is included, and what there is, is missing some of the info.
Of course, not every record originally kept has survived. Some pieces of information get the dreaded [blank].
Post the names and dates you are interested in. If I find what is, or may be, your people, I will post a photo of what I find that you can download and save, if you want.