Isobuster - Low cost utility to recover data from damaged, scratched, or otherwise defective discs.
EarTrumpet - Volume Control for Windows
Wise Data Recovery - Wise Data Recovery is a professional data recovery tool, it helps you quickly recover deleted photos, documents, videos, email, etc. from local drives, external drive, USB drive, SD card, mobile phone and other removable devices.
Sound Control - App-specific volume control
UpdraftPlus - UpdraftPlus is a WordPress backup plugin.
Power mixer - Power Mixer is a complete Windows volume control replacement.