How Do I Solve this Problem when Copying Library from Backup Disks?

Question

I recently had a pc problem that resulted in the repair company having to back up my hard drive (which included my I Tunes Library) onto DVDs.
When trying to upload the ITunes library from the DVD to my new computer (after downloading I Tunes software), about half of my library uploaded fine.
The other half is indicated in my new I Tunes library, but when I click on it it says that such songs "could not be used because the original file could not be found. Would you like to locate it?"
When I attempt to locate it, I cannot find it on the disk. But it must be there, I am guessing, because it loaded, albeit in the inaccessible form, into the new I Tunes library?
When I open the disk in my D drive, I cannot find the songs that will not open; it appears that the people who backed it up, only made it through the "Ds". But again, that is inconsistent with the fact that the inaccessible songs' titles were uploaded to the new I Tunes library.
I am totally stumped. Is there any way to fix this? I am faced with losing half my library.

Answer 1

CAn anyone tell me how to get out of this iphone recovery? thanks!!