This is puzzling me.
I write a CD using Nero 184.108.40.206. I tick the verification option and it verifies the data written. It fails!
OK so I copy the data back to hard disk to test. It copies it all without a problem. I do a CRC check on the original file and compare it against the file on the CD and the copy on the hard disk from the CD.
The one on the CD has a different CRC to the original file. The copy of the file from the CD has the same CRC as the CD file which I would expect.
So the file has changed from the original to the CD basically. Yet I get no error copying the file back. It reads back fine. If it’s data then surely the file either has an error or not? If there is an error surely it would not copy back? The only thing I can think of is the file gets corrupted while being burned but it still does the actual burning correctly (It’s just you now have a corrupted file on a disc that reads back OK).