ET79 0 Posted September 29, 2010 I got a problem with this model CPD502ZAD, This morning i try to open and do a backup the data i want, but half way through the transfer stop and the system heng. SO i did a power off and now i can view any data through the DVR system. Is they any software or OS that can help to view the data back urgent case Share this post Link to post Share on other sites