.SMI File Extension

.SMI File Extension

File Type 1

Self-Mounting Disk Image

Developer Apple
Popularity
3.3  |  23 Votes
Category Disk Image Files
Format N/A

What is an SMI file?

An SMI file is a disk image file created by Aladdin ShrinkWrap or Apple Disk Copy in Mac OS Classic (Mac OS 9 or earlier). It contains a disk image that mounts as a disk on the Desktop when opened.

More Information

SMI files were designed to enable floppy disks and CDs to be available as digital downloads. The files could be double-clicked, which would then load a virtual disk on the Desktop of the computer.

When Mac OS X replaced Mac OS Classic, the "DiskImageMounter" utility was bundled with Mac OS X to mount disk images. Self-mounting images became less popular as SMI files were replaced by .DMG files in Mac OS X.

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Programs that open SMI files

Mac
Included with OS
Apple Disk Copy
Aladdin ShrinkWrap
Updated March 8, 2018
File Type 2

SAMI Subtitles File

Developer Microsoft
Popularity
2.4  |  11 Votes
Category Video Files
Format Text

What is an SMI file?

Video subtitles file created in the SAMI (Synchronized Accessible Media Interchange) format, which was developed by Microsoft; used for storing closed captions that are synchronized with video playback; extended from the HTML language.

More Information

The SAMI format is supported by many different video players as well as subtitle editors.

Programs that open SMI files

Updated May 12, 2016
File Type 3

SMIL Presentation

Developer N/A
Popularity
2.7  |  7 Votes
Category Video Files
Format N/A

What is an SMI file?

Audiovisual presentation created using the Synchronized Multimedia Integration Language (SMIL); used for multimedia presentations and slide shows; typically contains references to a sequence of media files as well as text and other data.

More Information

SMIL files often use the .SMIL extension to avoid confusion with the Mac OS 9 SMI disk image extension. The ".smi" extension is commonly seen on Windows computers.

Programs that open SMI files

Updated August 6, 2020

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