it is not the way, because to do that i need to select each of channel and download not more than 30 minutes video files. it will makes me very sad panda)
i has tried to copy to flash (format flash to fat32, insert it to copy2 port on dvr, click and select channels and date not more than 100 minutes) by clicking "ok" i get a message "the drive does not exist".
now i'm trying to record on external dvd-recorder