Files with _ipod_control extension can be most often found on iPod devices from Apple. It contains some sort of configuration.
_IPOD_CONTROL file extension - iPod control data file
What is _ipod_control file? How to open _ipod_control files?
The _ipod_control file extension is used for some files found on Apple iPod Devices, a line of portable media players developed and sold by Apple Inc.
The ._ipod_control files are hidden by default and are probably used for some sort of configuration or settings.