A: Buffer underrun. Use slower burn speeds (4x for DVD, 8x for CD) and close all other programs.
Because the Frontech FT-0470 is a legacy product, its official driver sources aren't as easy to find. Don't worry, you can still get the necessary drivers for your operating system. frontech ft 0470 driver
If your device shows a yellow exclamation mark in Device Manager: Right-click the start menu and select . A: Buffer underrun