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LITIGATION SUPPORT TIP OF THE NIGHT

The views expressed in this blog are those of the owner and do not reflect the views or opinions of the owner’s employer. All content provided on this blog is for informational purposes only. The owner of this blog makes no representations as to the accuracy or completeness of any information on this site or found by following any link on this site. The owner will not be liable for any errors or omissions in this information nor for the availability of this information. The owner will not be liable for any losses, injuries, or damages from the display or use of this information. This policy is subject to change at any time. The owner is not an attorney, and nothing posted on this site should be construed as legal advice. Litigation Support Tip of the Night does not provide confirmation that any e-discovery technique or conduct is compliant with legal, regulatory, contractual or ethical requirements.

See my post on Running Regex Searches With a Grep Utility on the ILTA litigation support blog.

New tips for paralegals and litigation support profesionals are posted to this site each week. Click on the blog headings for better detail.

See How-To Videos on my YouTube channel.

ISO files

Feb 19, 2016

Anyone who has spent time burning data to discs has dealt with ISO files. An ISO file is basically a copy of an optical disc. The 'ISO' refers to the International Organization for Standardization. ISO developed a specific standard ISO 9660 which allows different operating systems to exchange data. ISO files don't use the first 32 KB of a disc - this is referred to as the system area. This is reserved for data that consists of alternate file system descriptors. The beginning of the data area is followed by a volume descriptor set of 2 KB. This is in effect the header of the data, and always begins with 'CD001'.

An ISO file can be opened with file extraction software like 7-Zip.

ISO 9660 can only support files of more than 4 GB on DVDs with a fragmentation feature. Mac OS devices may not be able to deal with these fragmented files.

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