If I understand everything correctly, you need to remove HDD from Dish DVR and connect it to your PC. The hard drive uses ext2 partition, so you can access it from Linux; in Windows you need an ext2 driver (or you can use alternative methods like a plug-in for Unreal Commander / Total Commander).

Then you need to create an MPEG-2 TS video from your DVD and copy it onto hard drive.

It doesn't seem to be easy. Besides it may not work. So I don't think it is worth it.


You can also decrypt a DVD to your hard and remove everything that you don't need such as FBI warnings, ads,... Then burn a new DVD and enjoy. It seems to be the easiest solution to your problem.