Instead of chasing random zip files, hunt down the Archive 1967-75 and Archive 1976-92 box sets. They were officially released and contain 95% of the B-sides and live gems mentioned above, mastered properly.
For the casual fan, Genesis is "Land of Confusion" and "Invisible Touch." For the die-hard, it’s the 23-minute epic "Supper’s Ready" and Steve Hackett’s tapping. But for the true obsessive, Genesis is the B-side, the live bootleg, and the alternate mix.
The Duke tour. This is the "angry" Genesis. Phil had just gone through his divorce, and the band played "Duke’s Travels" with a ferocity never matched in the studio. The "Rar" circulating for years included the segue into "Behind the Lines" that was muddied on the Archive release.
The Lamb Lies Down on Broadway played in full. The official Archive #1 box set cleaned up a lot of this, but the raw, unedited bootlegs contain stage banter and extended jams that were cut from the official release.
Whether you are after the Peter Gabriel theatrical years or the Phil Collins stadium era, the joy of Genesis is in the margins. The hits are for the radio. The rarities are for the soul.
If you have found yourself searching for the "Genesis Discography Rar," you aren’t looking for the studio albums. You’ve already got those. You are looking for the weird stuff—the treasure buried in the vault.