I bought a brand new Western Digital 2TB Hard Drive (WD20NPVX) to upgrade my Sony HAP-Z1ES music server, but I overestimated how much space my music would take and don't need to do this upgrade.
Selling this brand new, sealed, internal hard drive for $99 - it's $220 on Amazon:
https://www.amazon.com/Generic-WD20N...dp/B00T2U9OOC/
Can be picked up in Los Altos or at Stanford