Introduction to File Extensions
Different media formats use different file extensions to help the user (you) and the Zoom Player identify multiple media formats. The File Extensions page allows you to update Zoom Player with new or user-specific file extensions Zoom Player should look for when opening media files or listing folder content (Zoom Player filters unknown file extensions from file lists).

At any point, press the "Default" button to result the default extensions Zoom Player shipped with.

Video
Video file extensions.

Audio
Audio file extensions.

Images
Image/Picture file extensions.

Playlists
Playlist file extensions.

Process ".m3u8" playlists
The "m3u8" playlist format is used by multiple applications for slightly different uses. It may be used in HLS streams. HLS streams contain the same media in different qualities (bitrate), in which case you would not want Zoom Player to process these playlists and instead let the streaming filter handle it.

In other cases, this playlist format may be used as a regular playlist. In such cases you will want Zoom Player to process the playlist itself.

Subtitles
Subtitle file extensions.

Execute
Executable file extensions, use with care (Can be used to mount virtual CD/DVD images).

Download
Files or URLs containing a sub-string listed in this field are relayed to download plugins instead of playback.

Archives
Archive file extensions.

ISO mount command
To automatically mount and play ".ISO" disc image files, specify a 3rd party tool to virtually mount the image (for example "Virtual Clone Drive"). The specified "%n" marker in the command line is automatically replaced on playback with the full path to the ".ISO" file. Finally, use the "Open drive after mount" option to specify the drive to place once the disc image is virtually mounted.

An example using Virtual Clone Drive to auto-mount an ".ISO" file to drive "G:"
"C:\Program Files (x86)\Elaborate Bytes\VirtualCloneDrive\VCDMount.exe" /l=G "%n"

Auto-Get Duration / Title for the following media file extensions
When Zoom Player adds files to the playlist, it can get the duration of most common media formats in the background while the CPU is idle. The default auto-get duration extension list provides verified support for popular formats.