The file has an unsupported compression type in Premiere Pro [FIX]

by Tashreef Shareef
Tashreef Shareef
Tashreef Shareef
Windows & Software Expert
Tashreef Shareef is a software developer turned tech writer. He discovered his interest in technology after reading a tech magazine accidentally. Now he writes about everything tech from... read more
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Adobe’s Premiere Pro is an industry-standard when it comes to consumer-grade video editing software and most of it has to do with its wider file format support and ease of use. However, some users have reported that they are unable to import some audio files like MP3, MP4 or AVCHD due to an error.

The full error reads “the file has an unsupported compression type” and occurs when you try to import any media file. This is a common issue and mostly occurs due to the incorrect file format. In this article, we take a look at the best possible solutions to fix this error.

Why can’t I import MP3 or MP4 files in Premiere Pro?

1. Change the File Extension

  1. Before importing the media file try to change the default file extension to something else. Like if you want to import a .avi file, change the extension to .mpg. 
  2. This makes Premiere Pro use a more tolerant import format which will accept a non-standardized file as a valid import.the file has an unsupported compression type
  3. You can also use the best audio converter software to convert your media files to a supported format.

2. Clear Media Cache Files and Database

  1. Launch Adobe Premiere Pro. 
  2. Click on Edit menu and select Preferences.
  3. Go to the Media tab from the left pane.
  4. Here, note down the location for “Media Cache Files” and “Media Cache database“. Copy the location to a notepad or something for better accessibility.
  5. Close Adobe Premiere Pro app and any other Adobe program running on your computer.
  6. Open “File Explorer” and navigate to “Media Cache Files” and “Media Cache Database” location one by one. Rename the folders, Media Cache File and Media Cache.
    the file has an unsupported compression type
  7. Now launch Adobe Premiere Pro again and go to Edit > Preferences > Media.
  8. Click the Clean button for “Media Cache Database” folder.
  9. Close and re-launch Adobe Premiere Pro and attempt to import the file with the error and check for any improvements.

The Premiere Pro issue appears only when importing certain audio files. Try converting them with these tools.

3. Other Solutions to Try

  • Change the file directory: Before attempting to import the file, change the file location and then attempt to import the file. If your file is in one folder, move it to an alternative folder and try to import it from there. If the issue persists, try to move the file to another disk or partition and try again.the file has an unsupported compression type
  • Check if you are using a trial version of Adobe Premiere Pro. Adobe Premiere Pro may not function properly with some file formats when the trial version is active. If you have the license for the product, make sure it is activated.
  • Uninstall and Re-install Premiere Pro. If nothing seems working, try to reinstall the software. After uninstalling it, make sure you remove any leftover junks using registry cleaning software.


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