Convert ISZ to CDI

Understanding ISZ and CDI file formats

ISZ is a compressed disk image format developed by EZB Systems, commonly used for storing exact copies of CDs or DVDs in a compressed and optionally encrypted form. The ISZ format is primarily associated with UltraISO software and is not as widely supported as other disk image formats.

CDI is a disk image file format created by DiscJuggler, a popular CD/DVD burning application. CDI files are often used for Dreamcast game backups and other disc images, and are supported by various emulators and burning tools.

Why convert ISZ to CDI?

Converting an ISZ file to a CDI file is useful if you need to use the disk image with software or hardware that only supports the CDI format, such as certain emulators or burning programs. Since ISZ is less widely supported, converting to CDI increases compatibility.

How to convert ISZ to CDI

There is no direct one-step converter from ISZ to CDI, but you can achieve the conversion in two steps:

1. Convert ISZ to ISO: Use UltraISO or a similar tool to open the ISZ file and save it as an ISO file.
2. Convert ISO to CDI: Use a tool like DiscJuggler or PowerISO to convert the ISO file to CDI format.

Recommended software for ISZ to CDI conversion

• UltraISO: Open your ISZ file, then use File → Save As and select ISO as the output format.
• DiscJuggler: After obtaining the ISO, use DiscJuggler to create a new CDI image from the ISO file.
• PowerISO: Supports both ISZ and CDI formats, allowing you to open the ISZ, save as ISO, then convert to CDI.

Step-by-step conversion process

1. Open the ISZ file in UltraISO.
2. Go to File → Save As and choose ISO as the output format.
3. Open the resulting ISO file in DiscJuggler or PowerISO.
4. Use File → Save As or File → Export and select CDI as the output format.

Tips and considerations

• Ensure you have the legal right to convert and use the disk images.
• Some ISZ files may be encrypted or password-protected; you will need the password to convert them.
• Always verify the integrity of the converted CDI file before use.