Click the "Select File" button above, and choose your CISO file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert CISO to another file type
To convert CISO disc images to another format, you need Dolphin Emulator or other Disk Image software.
Convert a file to CISO
To convert other file formats to the "Compressed ISO File" file type, you need software like Dolphin Emulator or a similar tool.
About CISO files
The .CISO format is a Compressed ISO file primarily used to store ripped game disc images for Nintendo GameCube, Nintendo Wii, and Sony PlayStation Portable (PSP). By compressing standard ISO files, .CISO saves significant disk space. This made it highly popular for users of emulators like Dolphin Emulator and PPSSPP, as well as for playing backups on modified consoles using Wii Backup Manager. However, the .CISO format has notable disadvantages today. It is an older compression method that can sometimes cause loading stutter in modern emulators because it strips out dummy data and alters the original disc sector alignment. Furthermore, newer formats like RVZ offer better compression ratios and perfect 1:1 data preservation. Converting a .CISO file is often necessary to run the game flawlessly on newer emulator builds or to burn it back to a physical disc. We recommend converting .CISO back to standard ISO for maximum compatibility, or to WBFS if you are playing on native Wii hardware via a USB loader. Because this is a specialized binary game dump format, standard online document or image converters will fail to process it. Just drag and drop your file to identify the format, view its internal metadata, and convert it when possible through our advanced processing engine.
Convert.Guru analyzes your CISO file, detects the exact format, and lets you read the text inside.
If you want to convert CISO file to ISO, WBFS, IMG, DMG, VHD, VMDK, VDI, HDD, QCOW, QCOW2, RAW or VBOX, you can use Dolphin Emulator or similar software from the "Compressed Game Disc Image" category. In the File menu, look for Save As… or Export….
To convert VFD, DMG, OVA, IMA, VBOX, ADF, PVS, VHD, OVF, ISO, DSK or IMG files to CISO, try Dolphin Emulator or another comparable tool in the "Compressed Game Disc Image" category.
The CISO Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our CISO converter.