This data is copyrighted by BMW AG. We do not host or directly link to files. However, legitimate sources include:
PSdZData stands for "Programmsteuerdaten-Zahlen" (Program Control Data). The v42720 psdzdata lite download new
Drop the CAFD name in the comments.
This appears to refer to (used for BMW diagnostics, coding, and flashing with tools like ISTA, E-Sys, or ENET cable), where v.4.27.20 is a specific version. This data is copyrighted by BMW AG
The release (dated typically from the second half of the production year) brings several key improvements over older versions such as v4.39.12 or v4.40.12. and flashing with tools like ISTA