File Extension Library

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.JSO File Extension

  • Category: Archive and compressed Files

What are .JSO files and how to open them?

Can't open .JSO file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .JSO file.

What is a .JSO file extension?

.JSO file extension has been classified as Archive and compressed Files.

.JSO is Compressed ISO image

The jso file extension is associated with the PSP ISO Compressor, an utility for Windows that allows owners of Sony PSP to compress ISO disk images of PSP games.

The jso file is playable in PSP with customized firmware.

.JSO file format is deprecated and this file format is no longer supported.

Currently, .JSO file type is not actively used and is obsolete. This usually happens with system files in older operating systems, files from long-discontinued software, or with previous versions of some file types (documents, projects, images, etc.) that were replaced in later versions of the original programs.


How to open:

Can be used on PSP platform.

How to convert:

This type of disk images can be converted to other formats specific for PSP platforms.

How to fix problems with .JSO files

  1. You need to update the application that you normally use to open .JSO files. Only the latest version of the software supports the current .JSO file format
  2. You need to check the .JSO file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)
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