For starters, in future please use a real subject line. Everyone here
has a questions.
Now, did you actually try to open it from the DVD? If so, copy the
entire contents of the folder to your harddrive and open it from there.
Monday, January 14, 2013 7:12 PM
created by DenverDesign23
<http://forums.adobe.com/people/DenverDesign23> in /InDesign/ - View
the full discussion <http://forums.adobe.com/message/4993812#4993812
Bob, point taken about a more descriptive subject line, will do that in the future. I have tried copying the files and opening from the hard drive, as well as using file > open > open copy, which also was suggested. Always get the same error message.
Sounds as if they aren't really InDesign files.
The only other thing I can think of is they are the Mac resource forks. Do you see more than one file with the same name?
No, Peter, I see only one file. Thought they might be PDFs but they don't open in Acrobat. The indicated file sizes seem right for an .indd file of this complexity. Other files like jpegs and pdfs on the DVD open ok, it's just the .indd files that are problematic.
Try opeing one in a text editor and see if you can read the header info. An ID file should have the word DOCUMENT in the first line.
Its also possible they are zipped.