Judging by the times provided by Noxon, this looks like being the longest studio album in my collection, beating The Flower Kings' Stardust We Are by just 4 seconds.
On the subject of what CDs can hold, I have a few classical CDs that actually go over 80 minutes, one of which is 82 mins. And I'm aware of a hybrid SACD disc that has 86 minutes of music.