When I try to unzip my album
...I get an error message.
...I get a message saying the zip file is empty.
...I’m prompted to enter a password.
...some of the tracks are missing.
All of these errors indicate the same thing: that the downloaded file is incomplete, probably due to a hiccup in your internet connection. The solution is to try downloading the album again (refer to your email for the original download notification). Album downloads can be pretty large, so if you’re on wireless you should definitely try plugging directly in. You can verify that your download is complete by right-clicking it and selecting Properties (or if you’re on a Mac, by clicking it and choosing File > Get Info). The size should match the file size indicated on the download page on Bandcamp.
If after re-downloading you still aren't having better luck even though the file sizes match, I ask: are you using an older version of Windows? If so, there are a few tricky things that might trip up the built-in unzipping program:
Long album & track names can cause trouble. To work around this, move the downloaded zip file to a place on your hard drive with a short path name, like C:\temp, and extract from there. Once the files are successfully unzipped, rename them to something simple (like “every atlas - track 1.mp3”) and then move them to wherever you need to in order to import them into your music player.
Punctuation & unusual characters can make that old unzipper of yours sneeze. Rename the zip file to something simple (e.g., “madeinheights.zip”) and try unzipping again. If that doesn’t work, you may need to use another extraction tool (like 7-Zip or Zipeg) with better support for extended characters.