I was wondering if roon would be able to (or does it currently) use certain tags to identify the exact release of an album. Presently when I rip a CD and even when I rip my own Vinyl records, I use two tags that ID the album based on discogs. The two tags are ISRC and Publisher. But from just the ISRC, a simple google search using discogs and the ISRC number brings you right to the exact release of the CD. There are a few tagging pieces of software that will find the release of your rip and allow you to properly tag the files based on the exact release. I think that at the very least incorporating the ISRC tag into the album identifying process would be very helpful to accurately finding and IDing the proper version of an album.
Here is an example using the ISRC of the search to put into google for U2 The Joshua Tree on Vinyl
discogs 90581-1,7 90581-1
The first hit is the exact release