This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) This article's edit history is not complete. Some of the article text's edit history exists at a different location due to copying and pasting between articles. This may be a violation of the CC BY-SA and/or GFDL if proper attribution was not made in an edit summary or on the talk page. Please see Wikipedia:Merge and Wikipedia:How to break up a page for details of when such copying and pasting is acceptable and when it is not, and how to correctly attribute using links in the edit summaries. You can also read the "copying within Wikipedia" guideline for an overview of the issues involved. The topic of this article may not meet Wikipedia's notability guidelines for products and services. Please help to demonstrate the notability of the topic by citing reliable secondary sources that are independent of the topic and provide significant coverage of it beyond a mere trivial mention. If notability cannot be shown, the article is likely to be merged, redirected, or deleted.Find sources: "UltraISO" – news · newspapers · books · scholar · JSTOR (April 2012) (Learn how and when to remove this message) This article relies excessively on references to primary sources. Please improve this article by adding secondary or tertiary sources. Find sources: "UltraISO" – news · newspapers · books · scholar · JSTOR (April 2012) (Learn how and when to remove this message) (Learn how and when to remove this message)
UltraISO
Developer(s)EZB Systems
Initial releaseApril 20, 2002
Stable release
9.76 / 7 August 2021; 2 years ago (2021-08-07)[1]
Operating systemMicrosoft Windows
PlatformIA-32 and x86-64
TypeOptical disc authoring software and virtual drive
LicenseCommercial
Websitewww.ezbsystems.com/ultraiso/

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.

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

  1. ^ "UltraISO Revision History".
  2. ^ "Order UltraISO - EZB Systems, Inc".
  3. ^ "ISO Images Editing Made Easier". 27 June 2006.
  4. ^ a b "ISZ File Format Specification". EZB Systems. 2006-07-03. Retrieved 2008-09-24.
  5. ^ "CBC decryption vulnerability". Microsoft docs. Retrieved 29 Jan 2022.