How do you tape a show on dish network?

Some Dish Network DVR support moving of TV programs to an external USB 2.0 hard drive. The ViP 622 has this feature and they support up to 750GB hard drives. However, this doesn't let you read the drive on a PC and copy these files somewhere else such as DVD.

This is also supported on the ViP722 as well. However, you can't record directly to the external drive but you can move video to it and play directly from the drive. You can use multiple external drives on the same Personal Video Recorder or PVR.