I record ota using Media Centre.
In the 'Recorded TV' folder are my own files which I use to process wtv to mpg.
Neither Windows image program, nor the program I use (AOMEI) will copy the contents of the folder - something about copyright?
I don't care about the wtv files as much as my own; I use the backup folder to quickly replace the original folder when I ****up.
Someone at the AOMEI forum posted a link that shows the solution:

https://social.technet.microsoft.com/Forums/windows/en-us/2c61d4cf-380b-4f58-b0f6-011b...m=w7itpromedia

It's to delete a registry entry - I tried it and it worked for me (Win 7).