Had a look but I dont see what discogs will do for me. I don't want too find new music or buy it that way, I want to rationalise my own collection on a pc.
You can create 'Collections' on the Discogs website and add all of your current albums on there (has the added bonus of letting you choose the actual edition you own). I use it as a point of reference when I'm buying vinyl to check that i'm not replicating something I already own