Software & Apps File Types What Is a BDMV File? How to open, edit, & convert BDMV files Share Pin Email Print File Types Design Cryptocurrency MS Office Windows Linux Google Drive Apps File Types Backup & Utilities View More By Tim Fisher General Manager, VP, Lifewire.com Tim Fisher has 30+ years' professional technology support experience. He writes troubleshooting content and is the General Manager of Lifewire. our editorial process Facebook Twitter LinkedIn Tim Fisher Updated November 18, 2019 A file with the BDMV file extension is a Blu-ray Information file or is 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. BDM is a similar file format but is usually seen only on hard drives; they're referred to as AVHCD Information files. BDMV files are commonly used on optical discs. 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 Media Player Classic Home Cinema (MPC-HC), BDMV Player, and VLC. CyberLink PowerDVD, JRiver Media Center, Nero, and Macgo Mac Blu-ray Player support BDMV files too 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 can't get your file to open in the programs mentioned above, you might be misreading the file extension. The BDMV extension looks an awful lot like the file extensions in unrelated formats, like DMB (BYOND Game Executable), BDB (Microsoft Words Database Backup), and BDF (Binary Data) files. If you find that an application on your PC does try to open the BDMV file but it's the wrong application or if you would 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 cannot 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. Wondershare Video Converter Ultimate and iSkysoft iMedia Converter Deluxe are two examples, but neither of those applications are free. You can instead use a free file converter like Freemake Video Converter or EncodeHD to 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).