With the exception of one or two comments, there's not much response to the initial question asked about these CD's. So here's what I've heard.
From what I've read (and I don't own these CD's), these are not useful for making stamp albums. They're a random assortment of images (scans) of stamp album pages from other people's collections, not the blank album pages you seem to be looking for. Plus more scans of articles about stamps and other things. It's a mishmash that might be interesting to browse through if that's your interest, but if you're interested in blank album pages to print out, that's apparently not what this is. Or so I've been told.
The inevitable Steiner suggestions are worth considering as Bill Steiner's blank album pages cover everything. They can be used to print small 8.5 x 11" "notebook" size pages on a home pinter -- and his layouts can be printed on larger pages in the more standard stamp album page sizes. I've printed Steiner pages onto blank Scott Specialty pages many times to create a missing page or two where I didn't want to buy an entire group of pages just to get the one or two I needed.
And it's possible to copy Steiner page files into MS Word (or PowerPoint) in order to make changes to them - to delete the Steiner page border, for example, which is very easy to do. Or to delete stamp boxes you don't want, as well as making other changes -- though I've found doing this very fiddly and somewhat difficult. Why do that? To create larger album pages to fit your own album. You print a borderless page on your own printer and use it as your original to photocopy from onto a blank (but bordered) Scott (or other brand) album page. You end up with a Steiner page layout printed on a bordered album page that matches any album whose blank pages can go through a photocopy machine.
Or you can print directly onto these same blank pages at home using a wide-bed printer. I don't have one of those, so I use Fedex to photocopy onto blank bordered pages, and they end up looking much like the originals. In fact, you could do an entire album this way -- and I've done that a few times for countries that do no have albums for them. The result is a "Scott Specialty" album printed on blank Specialty pages using Steiner page layouts.
You can also order Steiner pages printed on 8.5 x 11" paper or Scott International, Scott Specialty, or Minkus size paper from the "AlbumPages" website, and they'll print them for you pretty inexpensively. My only quibbles are that doing it this way you're stuck with the Steiner border, and the paper used does not quite match the slightly yellowish-white of Scott paper but is a little whiter.
Order just the blank paper from the same source and print them yourself as above with your own borders or the original Steiner borders. Same thing.
There are also at least a dozen other websites with typically one-country, blank pages offerings, often at no cost. Browsing the web is the way to find these. I know of one for France, for example. I don't find most of them very appealing. The tendency is to overcrowd the page layouts, for one thing, which is also sometimes a problem with Steiner pages though not so often with those.
You asked about "various album pages . . .to fill in missing areas" using "ready-to-print" pages, and these methods address that pretty well. And they're far less expensive than the alternatives. http://www.stampalbums.comhttp://www.albumpages.net/
Good luck -- and have fun.