CD/DVD burning broken under MacOS Sequoia

Kurt Lang wrote:

FWIW, ISO-9660 is fully capable of coexisting with all sorts of other volume formats.

Yes, I know. I was just trying to find out what macOS was doing. And the answer is, it no longer burns ISO 9660. For anyone who specifically wants CDs/DVDs in that format, they're going to have to use a third party option, like Toast Titanium 20.

cdrtools and dvdrtools are additional paths, albeit command-line.

hdiutil burn support is built into macOS, though I’ve not tested that on macOS 15 Sequoia.

FWIW, ISO-9660 is fully capable of coexisting with all sorts of other volume formats.

Yes, I know. I was just trying to find out what macOS was doing. And the answer is, it no longer burns ISO 9660. For anyone who specifically wants CDs/DVDs in that format, they're going to have to use a third party option, like Toast Titanium 20.

Use a app called Burn, it have a copy section. Drag my ISO files into burn's copy and it works like a charm. Whenever it's a DVD or Blu-Ray.

https://burn-osx.sourceforge.io/Pages/English/home.html

I also have issues burning ISO's in MacOS. Use Burn till Apple fixes it (I hope so, but don't get your hopes up)

I hope It helps. Apple please fix the issue.

I have a 2018 mac mini running Sequoia 15.2. I found this thread because I also cannot burn ISO images to CD-R in Sequoia via Finder or Disk Utility. Works fine if I open Terminal and use "hdiutil burn <image>" tip in this thread.

Thanks for this reply - I upgraded from 15.2 to 15.3 and can burn discs again without using Terminal.

Drag the file to the disc then right click , burn.

I update from Sequoia to 15.2 to 15.3 I believe they fixed it, I was able to burn a blu-ray and it's without using burn software. =) I hope it works again for you guys.

The only thing I see "wrong", is the OS won't burn an ISO 9660 disk.

I first tried a Burn folder. That created a Mac OS Extended DVD.

I then tried right clicking on handful of images and chose to burn to disk without first creating a Burn folder. That also worked. Though again, as a Mac OS Extended disk.

The only way I could get a true ISO 9660 disk was to use Toast Titanium 20.

Is the OS burning a hybrid disk? The tests that appeared as a Mac OS Extended disk on the Mac may mount as ISO 9660 when used with a Windows computer, but I couldn't test that. So, I don't know the answer to that one.

TheVarietyGuy wrote:

This is the exact same issue that happened almost a year ago when I upgraded from Ventura to Sonoma. I have customers that depend on me burning disks for them, and now I just have to tell them "sorry, we have to just wait for who knows how long for Apple to put out a bug fix."…

Options and alternatives to avoid a disruption have been listed earlier in this thread, including cdrtools / dvrtools and other command-line tools.

Here is a list of options: https://alternativeto.net/software/toast/?platform=mac

Given optical storage is long gone from Mac, and is disappearing elsewhere, and given Blu-ray device production has ceasing at many vendors (now including LG per reporting earlier this month), maybe work establishing another distribution path is in order, too.

As for letting Apple know: Product Feedback - Apple

The burn and I believe latest update is 3.1.7. It still works fine for me when I drag the iso file to copy then press burn and it works like a charm when finished.

Is the optical drive connected, and able to read optical media?

macdannie wrote:

I Can’t burn cd on external drive on Mac mini M2, Sequoia. Very upsetting and sad!

Tried any if the other tools mentioned above? cdrtools/dvrtools/Burn/Toast, etc.

I had to buy a third party app to get around this. Happening with multiple ISOs, all of which can be burned using alternative software or with a Windows machine.

So....Toast burns ISO's properly for me using "Copy Image File" so all's well here.

Patrick Denny wrote:

True enough for straight file copying, but Sequoia WILL NOT burn a disk image (ISO) properly. A disaster for many of us who still play and store from physical media. Apple? Apple?

Apple ➡️ Product Feedback - Apple