New answers tagged dvd
That it works fine on a Windows PC but not your Mac is puzzling. Think back to when you know it worked properly. What software have you updated since then? That could be the cause. For example if you went from OSX 10.10.3 to 10.10.4 and that is the only change there may have been a problem with the update. In that case you may want to try re-applying the ...
You said that you tried to create an image but did you use DiskUtility? Try to create new image of your DVD using DiskUtility. Save it to *.cdr file and mount & play or burn already created image to see the difference.
Got it: another user account from the same Mac had a file open on that DVD.
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