An ISO image is an archive file (also known as a disc image) of an optical disc, composed of the data contents of every written sector of an optical disc, including the optical disc file system. ISO images can be created from optical discs, or can be used to recreate optical discs using software from many software vendors. ISO image files typically have a file extension of .iso.
As with any other archive, an ISO image includes all the data of files contained on the archived CD, DVD or Blu-ray Disc (BD), or any other disc format. They are stored in an uncompressed format. Any CD or DVD can be archived by .ISO format. It is a true digital copy of the original. The ISO image file is not stored in a container file. These properties make it an attractive alternative to physical media for the distribution of software as it is simple to transfer over the Internet or via a LAN connection.
A feature of an ISO image is that it can be easily rendered, or “burned,” to a CD, a DVD, or a BD by using media authoring or disc burning software. It can also be opened using any file archiver. ISO burning is now typically a native feature of modern home and business computer operating systems.
Guide: How to copy DVD to ISO for backup
1. DVD Copy
2. Windows OS computer
Step1. Launch the program and load DVD
Launch DVD Copy, insert DVD disc to the hard drive and then click “Source” to import DVD movie to the program.
Step2. Choose the “Target”
Choose the “Image File (*.ISO)” in “Target” as the target output file type.
Step3. Decide the “Disc Label”
“Disc Label” is the name of the target file; you can change to anything you like.
Step4. Copying DVD to ISO files
Then click the big button “Start” to begin the process of copying DVD to ISO files.