I've always kept a MS Word file of everything I have. Back in my younger days I had to because I'd lend someone something and had to keep track of it. So all I did was put the year in front of the album. It took maybe five hours over the course of three weeks.
11/30 -- Devin Townsend
12/06 -- Distant Worlds: the Music of Final Fantasy
12/27 -- Unearth
03/07 -- Video Games Live