UltraISO
Optical disc authoring software From Wikipedia, the free encyclopedia
UltraISO is a crippleware application for Microsoft Windows for creating, modifying and converting ISO image files used for optical disc authoring, currently being produced by EZB Systems.
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A screenshot of UltraISO | |
| Developer(s) | EZB Systems |
|---|---|
| Initial release | April 20, 2002 |
| Stable release | 9.76.3860
/ 8 July 2023[1] |
| Operating system | Microsoft Windows |
| Platform | IA-32 and x86-64 |
| Type | Optical disc authoring software and virtual drive |
| License | Commercial |
| Website | www |
Initially UltraISO was shareware however since 2006 it has turned into commercial software.[2] The 'Free Trial' version is limited to ISO images of 300 MB or less, effectively making it Crippleware.[3]
ISZ format
UltraISO uses a proprietary format known as ISZ. The format is advertised as "ISO Zipped", even though it is not a simple zip archive. The format uses zlib or bzip2 to compress the data, and may use AES-128,192 or 256 encryption in the CBC mode[4] (note that this provides no integrity protection and is vulnerable to the padding oracle attack[5]). The file format specification is available publicly on EZB Systems's website.[4] The format is now supported by third-party applications such as Daemon Tools, Alcohol 120% and CDemu.
See also
References
External links
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