PlayStation CD image format associated with IsoBuster data recovery software
File type: Disk image (ISO) binary file
A CU2 file is associated with a Sony PlayStation CD image created or handled by IsoBuster. It may contain disc-image data or information required to interpret a recovered PlayStation disc structure.
These files are primarily opened with IsoBuster on Windows. Because CU2 is not a broadly supported standard image format, general-purpose archive and disc-image utilities may not recognize it correctly.
File type category:
Disk image (ISO) binary file
Date updated: September 22, 2026
The CU2 format is used in connection with PlayStation optical-disc images and recovery operations performed by IsoBuster, a data-recovery and disc-image utility from Smart Projects. It is intended for preserving or accessing information from CD media rather than for ordinary document or multimedia storage.
PlayStation discs can contain multiple tracks, CD-XA data, audio, and filesystem structures that are not always represented correctly by a simple ISO file. When working with such media, IsoBuster may use specialized image-related files and metadata to retain the original disc layout and support recovery of files and sessions.
CU2 files should not automatically be treated as standard CUE cue sheets; the similar spelling does not mean that the formats are interchangeable. The exact contents can vary according to how the image was created or recovered, so renaming the file or editing it as text is not recommended.
IsoBuster is the principal compatible application and is designed for Microsoft Windows. There is no widely established native CU2 support in common macOS or Linux disc-image programs; users on those systems may need to use a compatible Windows installation or a Windows compatibility layer, subject to IsoBuster's own requirements.
Install IsoBuster from Smart Projects, then use its Open or image-browsing command to select the CU2 file. If the file belongs to a set of image files, keep all related files in the same folder and open the primary image or project entry when IsoBuster requests it.
There is no dependable general-purpose opener for macOS or Linux. You can try running the Windows version of IsoBuster through a suitable Windows virtual machine or compatibility layer, but support is not guaranteed. Avoid opening an unknown CU2 file with random online viewers, especially if it contains recovered or sensitive disc data.
CU2 conversion is not widely supported by online converters. The safest approach is to open the image in IsoBuster and use its image extraction or image-creation functions to export recovered files or create a more widely supported disc-image set, such as an ISO or BIN/CUE image, when the source structure permits it.
Conversion may not preserve PlayStation-specific tracks, subchannels, copy-protection information, or damaged sectors. For archival or emulation purposes, retain the original CU2 file and any companion files, and verify the resulting image with the target PlayStation or emulation software.
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