i have a vip722k dvr with an external hard drive connected by usb. it works great. can watch saved content from the usb drive. i want to copy the recordings off the usb hard drive onto my computer (pc). i am concerned that i may loose the content. dvr is starting to act up and the last time this happened the dvr would not recognize of play the external hard drive. the new dvr reformatted the usb drive and i lost all my old shows. i once tried to plug usb into my computer and my computer reformatted the usb and i lost everything that time too.