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I changed the file association for my .dvdmedia files on my Mac to point at Blu-ray Player Pro. As it turns out this was a mistake as it turned all the .dvdmedia files into plain directories. Google has shown me the usual cmd-I solution (which doesn't work because what were bundles are being viewed as directories because of the file association on .dvdmedia) and some outdated advice to try duti which unfortunately doesn't compile on High Sierra (and might not work at all, who knows?). Presumably there's some way to fix this by editing a plist somewhere, but I've not found it yet. I did find that logging in as a different user showed the files correctly. Any thoughts on how to undo my gross mistake?

I've tried editing ~/Library/Preferences/com.apple.LaunchServices/com.apple.launchservices.secure.plist in XCode and discovered that the file association gets reset as below: Screen shot of plist editing in XCode

The association with public.iso-image is what I would like to have for dvdmedia.

Update: I was able to change the association in the .plist file and have it stick by logging out and back in again, but the .dvdmedia files still show as directories rather than single files. There must be something more than this one plist that is causing .dvdmedia files to be incorrectly displayed... I really don't want to have to re-rip the DVDs that I've put on my hard drive if I can avoid it.

Update 2: I tried moving ~/Library/Preferences to Preferences.old and logging out/back in. STILL have folders instead of bundles.

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  • Please explain "which doesn't work because what were bundles are being viewed as directories because of the file association on .dvdmedia) and some outdated advice to try duti which unfortunately doesn't compile on High Sierra (and might not work at all, who knows?" – JBis Jun 14 '18 at 1:07
  • The .dvdmedia files which are normally bundles in Finder now appear as directories rather than single files so I can't cmd-I them to change the association. – Donald Hosek Jun 14 '18 at 1:21
  • duti does not support OS X beyond 10.10 in the most recent version wtih a configure script (the latest version lacks the script so I can't even try to compile it). – Donald Hosek Jun 14 '18 at 1:22
  • What application do you want it to open in? – JBis Jun 14 '18 at 1:23
  • Also can you add a screen shot of the CMD - i window of one of the files/folders? – JBis Jun 14 '18 at 1:25

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