I have several selfmade albums, not with 500, but up to 180 songs. To get it displayed as a single album, I did the following: Name the album with the identical album-name. Tag all songs with the same albumartist. And give all songs a number in ascending order. The first song gets the 1, the five hundred the number 500. There’s no problem if artists and song-name are different. Roon just sees a compilation. Also important: Give alle the songs the same time-stamp. I do this with a freeware called NewFileTime. Every song may also have a different album-cover. But Roon shows the single cover with the name “folder.jpg” in the folder ore the picture you give to the album.
I tag all my songs with MP3TAG. This is a german program made by Florian Heidenreich and it’s freeware. And I think it’s one of the best tag editor. There is no easyer way to tag hundreds of songs with less effort. And no fear: You can choose of about 50 languages.
Here’s an example of my albums called “Top Hits” in the mp3tag view.
And that’s what the album looks like in Roon.
