Error message when opening Band-in-a-Box: Unable to open file ... RealTracksSubs.txt

This error might occur if launching Band-in-a-Box from an external hard drive, and Band-in-a-Box does not have permission to access removable volumes. (This is a security feature in Mac OS Catalina and higher).

To fix this, go to the Apple system Preferences | Security & Privacy. Band-in-a-Box needs to be listed (and selected) in the Full Disk Access section, AND/OR listed in the Files and Folders section with 'removable volumes' selected. Normally this isn't an issue, unless when you first used Band-in-a-Box and were asked, you denied it access. You can click on Full Disk Access section, click the + button, and select the from the /Applications/Band-in-a-Box folder.

PG Music Inc.