This article explains what a BDMV file is and how to open it on your computer.
A file with the BDMV file extension is a Blu-ray Information File, sometimes also referred to as a Blu-ray Movie Information File. It contains information about the contents of a Blu-ray disc, but does not contain the actual multimedia files themselves.
One file that uses this extension is index.bdmv, which stores information about the contents of the BDMV directory. Other common files include sound.bdmv and MovieObject.bdmv.
AVCHD information files (BDM file extension) look similar, but are usually only seen on hard drives. BDMV files are often used on optical discs.