The secret wasn’t just owning the files. It was understanding that is the first step, but "working with the download" is what actually builds your B1 listening skill.
: The primary source for official audio is the Hueber Sicher! Service Page. You can find free MP3 downloads for both the Kursbuch and Arbeitsbuch under the "Download" or "Audiodateien" sections. sicher b1 audio download work