fsurfer

Hi all, just joined and am looking for the software to load mp3's on to this device (Walkman NW-HD1) under Windows 8.1. I have downloaded Sonic Stage 4.3 and installing (running as admin) it stalls at 90% Any help would be appreciated. Update: Just installed SS3.4 and it went through the install process quickly (ignored the MD quick burn), works fine with this device.