Any you're seeing during the download
While you can technically drag and drop files onto your Stream via Windows Explorer, the Companion software offers features that manual transfers cannot match:
Downloading and installing the HumanWare Companion software is the first step toward a more organized digital library. Why You Need HumanWare Companion
The you are using (to check for driver issues)
HumanWare Companion is the essential bridge between your Victor Reader Stream and your computer. Whether you are using the classic second-generation device or the latest Victor Reader Stream 3, this software simplifies the way you manage books, podcasts, and music.
The software can notify you when a new system update is available for your hardware. How to Download HumanWare Companion
Easily subscribe to RSS feeds and sync new episodes directly to the device.
Sometimes, generic charging cables don't transfer data properly; use the original HumanWare cable if possible.