Yesterday, The Installation Tech. tried to help me connect and use my EHD's with my new Hopper . When he talked to Tech. Support, he was told a EHD with 722 Recordings could not be used with the Hopper. I was told the night before that it may work and it may not. The installation tech. said he would investigate and would call me if it was possible. Of course, After he left my EHD with several important recordings from the 722 played and transferred great with the Hopper. Some one needs to educate the tech's at Dish. Heck I could have just canned the EHD's.