This worked perfectly. The disk drive died on my Dish DVR which is a model 625 (with no recognized hard drive, it "thought" it was a 522). After installing a new disk, it would not automatically format the disk as I had been led to believe it would. I used this backdoor solution and it formatted the disk and the DVR works like new. Thanks!
This was sent to me... have not tried it... for Re-Initializing the HDD on your Dishnet receiver
Note: only try this as a last resort...