While "bm1.zip" is not a standard or widely recognized software package name, it most commonly refers to custom for BMW Android Head Units (HU).
: General "Zip" libraries, such as those from Mescius , feature the ability to password-protect archives and consolidate large files to save disk space. Zip Overview - mescius bm1.zip
Other common features associated with BMW-related zip packages and tools include: While "bm1