xa

XA or Extensive Audio is an audio file type which is primarily associated with The Sims ( a popular game now owned by Electronic Arts formerly by Maxis). It is also used in other games like Sim City. Note: Different versions of this file type may have different starting strings.

adts

The ADTS extension, short for Audio Data Transport Stream, which (as the name says) transports audio data and acts as a carrier for AAC encoded audio. An ADTS file contains a series of frames, whereas each frame has a header and is followed by the AAC audio data. The formats are defined in MPEG-2 Part 7, but are only considered informative by MPEG-4.

dbm

The DBM file format is a file extension that is associated with the ColdFusion Templates, DataBoss Menu Template or DigiBooster Pro Tracker.

m4b

In addition the relevant M4A file, a M4B format is a M4A file that can be bookmarked and are therefore better used for audio books and podcasts. This MPEG-4 Audio file is a layer file that is becoming the new standard for audio compression and is often used as the audio in MPEG-4 movies.

mpa

The MPA file extension is used for a Map Layer file, used by BusinessMAP that is created by ESRI and contains merely mapping layers. BusinessMAP is a mapping software that creates pushpin and color-filled maps from the information in databases and spreadsheets.

psm

A PSM file contains Epic Games Sound data.

sri

The SRI file format is a compressed voice file used by the Dragon NaturallySpeaking software. This software allows users to control their computer with their voice. It can also convert your voice to text.

aif

AIF is short for Audio Interchage File and is an audio file.

Mime type: audio/aiff, audio/x-aiff, sound/aiff, audio/rmf, audio/x-rmf, audio/x-pn-aiff, audio/x-gsm, audio/x-midi, audio/vnd.qcelp

dct

The DCT file format is a bitmap file with continuous tones. A DCT file is used by DALiM LiTHO software by Blanchard System Inc. The DALiM LiTHO software is an image retouching software that supports various formats such as PGS, TIFF and EPS.

m4r

A M4R extension is the extension given to a ringtone file, created for the iPhone by Apple Inc. Basically, a M4R file is just a M4A file that has been renamed. All music files can be converted to an iPhoe ringtone by renaming a music clip of maximum 30 second length to .M4R. Import the M4R to iTunes and sync the playlist with your iPhone.