Currently listening to the radio, but getting started at ripping my media into flac as opposed to MP3. Not sure how big of a difference it'll make, but since storage is cheap and plentiful I figure I'll give it a shot. Quick test of NIN Fixed EP showed aprox. 270M vice 75M so it's less than 4:1 for lossless which will amount to under 70G for my current files (the great majority are CDs, but there are a few digital only files so it'll be slightly less).