The File Extensions Database


.NR4 File Extension

  • Developer by: Nero AG
  • Category: Backup Files

What is an .NR4 file?

.NR4 is Nero CD-ROM (AAC) compilation data

The nr4 file extension is related to some older file format used by the Nero Burning ROM, an optical disks authoring software for Microsoft Windows and Linux systems.

The nr4 file contains compilation of AAC music.

This nr4 file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.


How to open:

Use Nero to work with *.nr4 files.

How to convert:

Probably can be exported to other formats.

How to solve problems with NR4 files

  • Associate the NR4 file extension with the correct application. On :
    Windows: Right click on any NR4 file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.NR4 files". Mac: Right click (or Ctrl-click) the NR4 file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .NR4 is Nero CD-ROM (AAC) compilation data. Because only the current version supports the latest NR4 file format. Search, therefore, e.g. on the Nero AG manufacturer website after an available .NR4 is Nero CD-ROM (AAC) compilation data update.
  • To make sure that your NR4 file is not corrupted or virus-infected, get the file again and scan it with antivirus software.