What Is a BDMV File?

How to open, edit, & convert BDMV files

A file with the BDMV file extension is a Blu-ray Information file, sometimes called a Blu-ray Disc Movie Information file. They contain information about the contents of a Blu-ray disc, but they don't hold the actual multimedia files themselves.

Some common BDMV files include index.bdmv, MovieObject.bdmv, and sound.bdmv.

AVCHD Information (.BDM) is a similar file format but is usually seen only on hard drives. BDMV files are commonly used on optical discs.

Several BDMV files in Windows 10
Lifewire / Tim Fisher 

How to Open a BDMV File

Most popular disc authoring programs that support Blu-ray disc burning will open BDMV files, like the free MPC-HC and VLC.

CyberLink PowerDVD, JRiver Media Center, Nero, and Macgo Mac Blu-ray Player support BDMV files as well but none of them are free to use (but they may have trial versions available).

You might also be able to use Notepad or another free text editor to open the BDMV file. Many files are text-only files meaning no matter the file extension, a text editor may be able to properly display the file's contents. Since BDMV files just hold information about the Blu-ray disc, it's possible that a text editor can open one.

If you find that an application on your PC does try to open the BDMV file but it's the wrong application or you'd rather have another installed program open BDMV files, see our guide for making that change in Windows.

How to Convert a BDMV File

Given that BDMV files are descriptive files only, you can't convert them to a multimedia format like MP4, MKV, etc.

However, there are some converters available that are advertised as "BDMV converters" that work by converting the video/audio contents (like the MTS/M2TS files) of the Blu-ray disc to other formats, but never the actual .BDMV files.

UniConverter is one example but it's not free. There are also free file converters like Freemake Video Converter and EncodeHD that can convert the media files from the Blu-ray disc, but they probably can't import the BDMV files or folders directly; you'd instead just choose the whole disc.

For example, Freemake Video Converter can convert a video disc to MKV, MP4, ISO, or even directly to another disc (which is useful if you have a copy of the Blu-ray disc on your computer).

Still Can't Open the File?

If you can't get your file to open in the programs mentioned above, you might be misreading the file extension. If this happens, you'll end up trying to open a different file in a BDMV file opener, which most likely won't work.

For example, BMD (Mu Online Game Data), DMB (BYOND Game Executable), BDB (Microsoft Words Database Backup), and BDF (Binary Data) files all share common letters with the BDMV file extension but they're in other formats that aren't related to the software mentioned above.