Although I can't give you definitive answers, I'll give you some ideas about tracing the albums which may be useful.
I'd suggest you obtain access to an online database called the Naxos Music Library. It's username and password protected but you may be able to access it from your local public library. Sometimes you can use your library readers card to login from home via your library website.
When you gain access, type what you're looking for into the search box on the top right. Now, I've just typed "Bach Toccata and Fugue" into the bar and come up with 871 albums that contain the track. You might well be able to whittle these down one by one until you get to what you want. The full album details are there and the relevant distributor codes for you to order or look for the album online. Naxos will allow you to listen to the tracks in their entirety.
I've just accessed the website via my university library website but there's no reason you can't do the same at you nearest public library nowadays.
There is another online database called The Classical Music Library which is similar and username/password protected but you should be able to access that at libraries too.