How to create ISO image from DVD on Mac for free?
An ISO image is an archive file (a.k.a. disk image) of an optical disc using a conventional ISO (International Organization for Standardization) format that is supported by many software vendors. ISO image files typically have a file extension of .ISO but Mac OS X ISO images often have the extension .CDR. The name “ISO” is taken from the ISO 9660 file system used with CD-ROM media, but an ISO image can also contain UDF file system because UDF is backward-compatible to ISO 9660. As with any other archive, an ISO image includes all the data of files contained on the archived CD/DVD. They are stored in an uncompressed format. In addition to data of the files it also contains all the filesystem metadata, including boot code, structures, and attributes. ISO image does not support multi-track, thus cannot be used for audio CDs, VCD, and hybrid audio CDs. With this ISO image you can : Distribution of software Mount “virtual drives” which emulate physical CDs or DVDs, such as Virtual Computers