The sector size must be the difference, the new files all report the correct version. I looked through the 4k files and found that the offset is at 10412 (so you could modify the code I posted to set the Seek offset to 10412 and it will work on the 4k files). I wonder if there is a way to determine if a file was created on a 4k sector disk?

Thanks for your time in helping me find out more about this. I really appreciate it.