Unable to mount CD archive - error 49153

[David Ransom]

I have just discovered that Apple have apparently discontinued support for old CDs even though they have been burnt on a Mac in the past!

This is an extract from a discussion I found when searching for my error message 49153 – https://discussions.apple.com/thread/250829936?page=1 

"Digging deeper, it turns out that I can mount CD-Rs formatted as "Mac OS Extended" (HFS+) and all the ones that will not mount are formatted as "Mac OS Standard" (HFS). Looks like Catalina has dropped support for old HFS volumes, bummer if you have a bunch of old CD-Rs." 

I've attached a screen shot. This has still not been fixed (I am running BigSur 11.0.1).

Has anyone else seen this problem, and do you know of an easy solution other than finding an old Mac, or even worse, a PC!!!!???

David

[Jason Davies]

Does it allow you to clone it to a disk image and mount it (bit of a long shot, I know...)?

Cheers,
Jason

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Cheers,

Jason

[David Ransom]

Thanks for the suggestion Jason, but the CD won't mount at all, even with Disk Utility. Fortunately I have another back-up on a removable hard drive, but it is sad to have lost my main back up and now only have one copy. I don't think I will need many of the files as some date back to 2008. But I agree with some of the comments on the Apple discussion page that Apple should have made it clear that those CDs would no longer be supported to give everyone a chance to source another method of backing them up.

David

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[Toby Leighton]

Wow that’s crazy! I burned a music CD in Catalina just the other day, for the first time in years in iTunes and that worked the same as ever.  I think HFS volume is not common for Cdroms so I guess that’s why the lack of support, they decided not enough people use it or would notice.  I’ve always found historically macs to be very flexible for mounting all kinds of media, guess those days are going. 

In terms of getting the data off I have an old iMac running 10.6.8 and I’m sure many other members of the group have old working macs lying around or in cupboards, you might even be able to install an older version of OS X yourself onto a USB hard drive from your original recovery dvds (or installer DMG If Lion or that sort of vintage) but as you say you have a hard drive so your safe for now.  Time to buy another one or a NAS?

I understand old formats dying out, I occasionally hear of people finding old Zip disks and looking for someone with an old old G4 with a Zip drive... but a cd. In a computer with a perfectly serviceable cd/dvd drive.  Totally crazy!

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