currently at 26.69GB that is excluding a serious chunk not yet "vetted" for going in to my actual library, by Vetting I mean the actual listening to the files for corruption issues, correcting tags and file directories to match my standards. Probably 30 - 35 gb all told. That being said I regularly clear files out and delete bands, for example last month I removed the entire Muse back catalogue from my hard drive to free up some space.