What are the advantages of using DVR verses VCR?
Features DVR VCR
Digital Image
Yes
No
Remote monitoring over Internet
Yes
(For network DVR)
No
PC Playable, backup-save to PC or other storage media, & email/print out through PC
Yes
(Via PC software)
No
Recording time length
Longer on HDD (For 80GB HDD/MJPEG video, 8 times longer than 6 hrs real-time VHS tape recording)
Shorter on VHS tape
Hassles of changing tapes or HDDs
No
(Less frequently)
Yes
Image deteriorating over frequent recycled tapes or overwritten HDD
No
Yes
Playback hassles of forwarding and rewinding
No
Yes
Instant search based on date and time
Yes
No
Programmable for recording speed (fps) and schedule
Yes
No
Power recovery auto record function
Yes
No
Password protection
Yes
No
Video motion detection (VMD)
Yes
(For some models)
No
Lockable recording media (like HDD and tape)
Yes
No

NDVR-04 & CR04N Network DVRs Q & A
Q1: IP address, how can Local Area Network is accessible, but internet remote access is not working?
A1: Please configure your router to have port 5000-5001 (NDVR-04) and 14337~14338 (CR04N) open in order for both video and audio of the local DVRs to tranmit through the router for interent remote access.

Q2: My ISP subscription is dynamic IP, I do not have fixed/static IP address, how can I setup to be able to remote monitor over the internet under dynamic IP?
A2:For dynamic IP users remote access can be accomplish by the following manners:(1) Using third party software that can be used to detect the changes in dynamic IP and send out the IP changes to email address, software such as IPWatcher, Dynamic IP Monitor, etc.
(2) Register for DDNS account from any of the following website; http://www.dyndns.com , http://i-dvr.net , http://www.no-ip.com , http://www.ddns.it , http://www.freedns.com , or any other DDNS registering site.

Q3: Can I use DDNS services for NDVR-04/CR04N system?
A3:
The NDVR-04/CR04N client software does not support DDNS, however; after registering for the #2 above from a DDNS registering site, a DDNS client software may be installed into the hosting computer for DDNS (Dynamic Domain Name Service) support. Then access the DVR system by using the dynamic domain. DDNS client software such as myDynIPPro, FTP server (most FTP server featured DDNS service), and etc.
**Most SOHO router/firewall have DDNS service built-in, in such cases DDNS client software is not required.
**Some registering DDNS services are Free DDNS and others are Paid Customized DNS.