Answer by Greenonline for Mac OS X: Best Way to Make an ISO from a CD or DVD
dd gives a non-mountable imageOn Catalina, when trying to copy an old RedHat 6.2 install CD I found that usingdiskutil unmountDisk /dev/disk2dd if=/dev/disk2 of=~/RHDisk.iso bs=2048produced an ISO that...
View ArticleAnswer by nonopolarity for Mac OS X: Best Way to Make an ISO from a CD or DVD
I have found that dd produces the same ISO image as some tools on the PC, so I have been using dd, and below is a quick list of commands:diskutil listdiskutil unmount /dev/disk1dd if=/dev/disk1...
View ArticleAnswer by bmaupin for Mac OS X: Best Way to Make an ISO from a CD or DVD
I'm normally a command-line person myself, and the built-in Disk Utility works pretty well also, but I recently stumbled across another good and free alternative called Burn. Among its many features is...
View ArticleAnswer by Charles Stewart for Mac OS X: Best Way to Make an ISO from a CD or DVD
Don't forget asr, the Apple Software Restore command-line utility: it can operate like a raw copy program like dd, but it has more bells and whistles. Not least, it will work directly with volume...
View ArticleAnswer by mark4o for Mac OS X: Best Way to Make an ISO from a CD or DVD
As mentioned in other answers you can use Disk Utility or dd to create an ISO image of the original disc. But if the disc is copy protected, it contains decryption keys in the lead-in area of the disc...
View ArticleAnswer by CT. for Mac OS X: Best Way to Make an ISO from a CD or DVD
After looking into dd command line tool...I found you can also create a disk image using disk utility.Just create a new image and select “DVD/CD Master”. - Apple adds the extension .cdr but you can...
View ArticleAnswer by user1931 for Mac OS X: Best Way to Make an ISO from a CD or DVD
You can use the dd command line tool. Make sure you unmount the drive first though.dd if=/dev/dvd of=dvd.isoThis will make a bit-for-bit copy of the DVD.Note: substitute /dev/dvd with the name of the...
View ArticleAnswer by Jose Cardoso for Mac OS X: Best Way to Make an ISO from a CD or DVD
Actually Disk Utility will create an ISO (.cdr extension). Just ensure you select the "CD/DVD Master" option before creation the image.That file can then be used like any other ISO file only requiring...
View ArticleAnswer by msanford for Mac OS X: Best Way to Make an ISO from a CD or DVD
There are generally four ways to create a disk image on an OS X box:Disk Utility - The on-screen prompts will guide you, but it will by default create a .dmg, which is an OS X-specific file format....
View ArticleAnswer by marcwan for Mac OS X: Best Way to Make an ISO from a CD or DVD
Open /Application/Utilities/Terminal.app/sudo diskutil unmount /dev/disk1dd if=/dev/disk1 of=~/myCD.iso bs=2048 conv=sync,notruncThat should do it!
View ArticleMac OS X: Best Way to Make an ISO from a CD or DVD
Both command-line and screen-oriented pointers appreciated!update:I verified the disk utility, hdiutil, and dd methods. dd seems the fastest, 30 minutes on my macbook pro vs. 40 minutes for hdiutil. I...
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