V6.67 version modify  modify (2012-01-09)
1. improve dvr server memory management mode to reduce memory usage and avoid memory more 2G cause software crash issue;
2. add Sunell Series IPC support;
3. upgrade ONVIF protocol program;
4. fix some other small bug;

V6.66 version modify  modify (2011-11-29)
1. upgrade Video Intelligent Analysis playback function, add object counting analysis function;
2. add audio support function for AVI convertor & backup;
3. add android mobile/ipad client function, search "pcdvrviewer" in android market;
4. solve ONVIF cameras connect bug;
5. fix some other small bug;

V6.65 version modify  modify (2011-10-26)
1. add Video Intelligent Analysis function, it includes: 
   (1) Unattended Object Detection
   (2) Missing Object Detection
   (3) Smoke and Fire Detection
   (4) Movement Direction Detection
   (5) Intrusion Detection
   (6) Tripwire Detection
   (7) Face Detection
   (8) Object Counting
2. add Video Intelligent Analysis result search & playback function;
3. add dvr server name input group setup function in nvr client;
4. upgrade IPC player to support DG series IPC audio function;
5. improve ONVIF to support ONVIF IPC authentication function to solve part ONVIF not support issue for previous version;
6. solve DG series board license issue for presious version;
7. fix some other small bug;

V6.63 version modify  modify (2011-08-18)
1. upgrade DG series dvr card SDK and driver to fix some bug in old version, extra for DG42XXHF card support;
2. add 9 split VGA and TV output function for DG42XXHF card;
3. add DG Series 1080P IP cameras support;
4. add DH IPC Search function in dvr server and fix DH series 3M pixel IP cameras bug;
5. fix alarm record status to not record status convert bug;
6. upgrade DG series IPC, DH seires IPC, axis series IPC, acti series IPC, arcontvision etc support;
7. fix some other small bug; 

V6.62 version modify  modify (2011-06-20)
1. add VGA matrix output function for DG42XXHF card;
2. add Color auto adjust by time function in dvr server;
3. improve record buffering management mode to avoid HDD busy cause network delay issue in dvr server;
4. fix LE/HE Embedded dvr PC dvr connect fail bug in sometime;

V6.61 version modify  modify (2011-05-26)
1. fix windows auto reboot fail bug for DG42XXHF card after set software auto reboot;
2. add DG series card support IP Cameras license function;
3. upgrade ONVIF IP Cameras support;
4. fix some other small bug;

V5.60 version modify  modify (2011-04-11)
1. Add DG42XXHF/HD card support, but please upgrade all DG card driver to current version;
2. upgrade player.exe to support record file convert to AVI and mpg function;
3. fix TV Client connect amount limition bug (connect camera fail for pc dvr) in dvr server and nvr client;
4. upgrade backup & video convertor function to fix some bug.
5. fix some other small bug;

V6.51 version modify  modify (2011-03-15)
1. improve web client download manually for install and uninstall function.
2. restore pc dvr remote playback function removed in 6.50, now user can select to do multi-dvr playback or single pc dvr playback.
3. upgrade NV series IP device SDK and player to support 5Mega pixel IP cameras.
4. improve multi-dvr playback function in nvr client.
5. fix some other small bug.

V6.50 version modify  modify (2011-01-27)
1. add ONVIF IP Cameras support;
2. add camera display open/close function in display group setup and window menu.
3. add IP cameras sensor input and digital output function in dvr server, user can control ip camera DI/DO and local alarm box DI/DO at the same time in dvr server now.
4. add motion alarm send email and SMS time delay function in dvr server.
5. add IP cameras motion detect function for third brand  ip cameras without motion alarm function.
6. add local fast playback function in dvr server.
7. upgade remote playback function to support multi dvr playback in nvr client, user can playback pc dvr and embedded dvr at the same time.
8. upgrade IP cameras player to fix old version bug.
9. upgrade local playback backup and POS search function, user can convert video when backup record data.
10. upgrade user password management function in dvr server, each user can setup self private password when he login dvr server first time.
11. upgrade iPhone Client to support iPad and multi-channel view function.
12. upgrade web client, when user's pc can't download and install activex automaticly, user can download web client manually and install it.
13. fix some other small bug.

V6.41 version modify  modify (2010-10-11)
1. upgrade mobile server to fix mobile client connect dvr crash issue, add android phone client support function;
2. upgrade DG series IPC SDK to support DG series IPC audio function and audio chat function.
3. add 3G function support in dvr server for DG series IPC.
4. upgrade backup & convertor to fix some bug in old version.
5. upgrade PC decoder and TV Client to fix some bug in older version, notice upgrade nvr client and tv client at the same time.
6. upgrade web client to support DG series IPC and third brand IPC in web client.
7. add 4 channel pos search & playback and pos text alarm email send function.
8. add vivotek and Sanyo IP camera support.
9. fix some other small bug.

V6.40 version modify  modify (2010-07-21)
1. upgrade DG board SDK and driver to fix DG41XXHC/HF card record stop bug sometime (only for these DG41XXHC card made after April,2010); 
   notice: upgrade DG card driver when install this version, or else DG will not work with this version if use old drier;
2. Add new DG series IPC support in dvr server and nvr client, also add DG ipc scan directly and preview stream switch function(reduce cpu resource for a lot mega pixel ipc) in dvr server.
3. add get disk record status function in dvr server and nvr client(only for pc dvr).
4. add 1366*768 and 1600*900 resolution support in dvr server and nvr client.
5. fix TV Client bug: when TV Client connect more 2 monitor, sometime it can't response config parameter at once. please upgrade tv client and nvr client into same version.
6. modify arcontvision ipc to support h.264, also modify sony IPC to support PTZ control.
7. fix some other bug.


V6.38 version modify  modify (2010-06-02)
1. add auto backup and video convertor function in dvr server, user can convert record to AVI or MS MPG4 when backup, AVI is a H.264 data, it can played in many TV or DVD or other player. MS MPG4 can be played in windows media player directly
2. improve pc decoder function, add user operation function to PC decoder display. but please upgrade TV Client and NVR Client to same version.
3. improve PTZ protocol config mode and PTZ protocol library in dvr server.
4. add PDA support function in nvr client, include iPhone and Blackberry etc, for iPhone, please use newest client version, search "MobileClient" in iTunes.
5. fix some issue for dvr server in win7. 

V6.37 version modify  modify (2010-04-26)
1. Add DG80XX/90XX series embedded dvr support in dvr server and nvr client.
2. improve pc decoder function. but please upgrade TV Client and NVR Client to same version.
3. fix local playback slow issue for big amount HDD. for old version in new file system, when HDD capacity is too big, such as 6T,8T, it will cause DVR playback slower, this issue is fixed from this version.
4. Modify sony, mobotix, acti, arecontvision etc IP camera setup call mode, now software will call ip camera web client directly.
5. fix bug: motion pre-record data loss or order error from 6.35 to 6.36.
6. fix serval other small bug.

//V6.36B version  modify (2010-03-13)
1. Add DG series board support, even Unite NV series card adn DG series card to a version, user can mix DG and NV card in same pc from this version.
   notice: if install DG card in new version, please upgrade nvr client to same version, or else remote setup camera can't work normally for DG card.
2. Add Camtron IP Camera and Axis IP Camera support.
3. Add dual monitor support(extended mode) with software decode in dvr server.
4. fix bug: dvr setup can't popup normally somtime in win7 OS.
5. fix bug: when connect IPC, sometime dvr server exit abnormity.

//V6.35B version  modify (2010-01-28)
1. Add PC Decoder Function to support multi-monitor in nvr client for TV Wall Function.
2. Modify Window Split Mode from auto to manual choice in dvr server and nvr client.
3. Modify PDA Client to support all IP Camera and all board in Dvr Server, add different Mobile Client support, such as Iphone, blackberry etc, need intall different client proram.
4. Modify Playback time bar function to let user choice playback position more flexible.
5. upgrade install program to support 64bit OS for NVR Client and DVR Server, but for NV Series board, need Install 64bit OS Driver.  
6. fix Hurviron IP Camera network break reconnect issue.

//V6.34B version  modify (2009-11-30)
1. add sony IP MJpeg support feature.
2. add Mobotix IP Camera and AcrontVision IP camera support feature.
3. add Normal & motion record feature and playback filter with reocrd type feature.
4. add disk data package management feature and user right feature.
5. add POS associate IP camera feature and POS text font display setup feature.
6. add UnInstall feature and backup setting parameters automaticly feature from this version.
7. Upgrade board SDK to support 42 series board and windows 7 in dvr server.
8. modify nvr client user right management feature.
9. fix a bug cause dvr crash for ACTi IP camera support.
10. fix a bug for dahua embedded dvr connect in dvr server. 

//V6.33B version  modify (2009-10-19)
1. add ip device register report function in dvr and nvr client. 
2. add POS buffering time function in dvr server.
3. upgrade Huviron SDK to solve image broke issue for huviron IP camera.
4. upgrade NV Series IP camera SDK to solve its network broke cause DVR crash bug. 
5. modify serval program module to support windows 7 for dvr server and nvr client.
6. modify two small bug for DG series embedded dvr support.
7. add dahua IP device support in dvr server and nvr client.

//V6.32B version  modify (2009-8-23)
1. fix virus report issue for all program build with delphi.
2. fix a player bug for sony IP support.

//V6.31B version  modify (2009-8-17)
1. add 1440*900 resolution support in dvr server and nvr client.
2. add DG series embedded DVR support in dvr server and nvr client.
3. fix a instant playback bug: dvr and nvr can't delete history file after instant playback due player upgrade in V6.30.
4. fix a record overwrite bug: dvr can't overwrite serval files pack sometime due to especial reason in 6.01-6.30.

//V6.30B version  modify (2009-7-3)
1. add emap function in nvr client, support extended and stretched display mode for emap display, 
   support armed and unarmed function, support filter record search by server name in nvr playback. 
2. add ACTi ip camera support.
3. add PTZ keyboard control function for dvr server and nvr client.
4. add HDTV Resolution 1920*1080 support in nvr client.
5. add PC DVR motion setup function in nvr client.
6. improve nvr local log search function, provide detail alarm search way.
7. upgrade player to support different video data and new 42XX series board video data.
8. fixed some other small bug.

//V5.28B version  modify (2009-5-19)
1. add HDTV Resolution 1920*1080 support in dvr server
2. add quick zoom and auto tracking function for intelligence PTZ.
3. add SD card format function for ip device.
4. add self define DNS server function for ip device.
5. fix nvr client connect self define dns server bug.
6. add web client download help function.
7. solve two nvr client serious bug(from v5.25 to v5.27):
   (1) nvr connect dvr server fail sometime bug server run ok.
   (2) new nvr client crash sometimes when get dvr alarm signal.
8. modify some other small bug in nvr client and dvr server.

//V6.26B version  modify (2009-3-18)
1. add sony IP camera support
2. add Huviron IP camera support
3. modify some small bug.

//V6.25B version  modify (2009-2-16)
1. add PTZ tour restore function in dvr server after dvr restart.
2. fix bug: matrix remote setup fail.
3. upgrade nvr client, new nvr client use new file system like dvr server, and can monitor device status,
   improve stand alone dvr search program, from this version, will start to log nvr client upgrade information.

//V6.23B version  modify (2008-12-24)
1. modify ip camera connect way to fix software crash bug in older version.
2. upgrade player and ip camera SDK to fix mega pixel ip camera no video bug.
3. modify dual monitor function in dvr server.
4. upgrade ip camera setup program.
5. add 1680*1050 resolution display function in dvr server.
6. fix main stream bug for ip camera in dvr server for last version.

//V6.20B version  modify (2008-10-10)
1. add mega pixel ip camera support function.
2. upgrade player to support new mega ip camera.
3. add sub stream reocrd function, user can playback sub stream from client.
4. add motion link ptz preset function.
5. add watermark function for board record data, if record data is modified, it will display info in player.exe.

//V6.10B version  modify (2008-9-3)
1. add new remote playback  server function, if user want to use new nvr version remote playback function, he must upgrade dvr server to this version.
2. add record days display function in dvr server.
3. nvr client add advanced remote playback function for pc dvr server. like smart search, sync playback, pos text search etc.  user can do same function operation with dvr server local playback.
4. modify dvr server lock bug: when dvr server is in pos setup, ip camera setup or acu setup, if user setup auto delay lock, it will cause dvr server can't response mouse again.
5. improve some other small function.

//V6.03B version  modify (2008-7-10)
1. fix a dvr start bug: when record disk total size is too big, dvr can't start due to software dog kill dvr when dvr server start time is too long.
2. improve disk record overwrite way, now overwrite time is more exact.
3. improve ip camera connection way to fix some ip camera connection bug;
4. add backup file time selectable function.

//V6.02B version  modify (2008-6-18)
1. add reverse playback function for new version. fix audio playback bug in dvr search.
2. improve sync playback function, keep sync in pause and next frame etc status.
3. fix motion record bug for ip camera in dvr server.
4. fix other serval small bug.

//V6.01B version  modify (2008-5-23)
1. change new record file system. pre-build disk data packet,  avoid older file system disk fragment, 
    improve playback mode, 16 channel sync playback is very great now. and dvr software's stable is enhanced.
2. add Icon Playback function, user can playback one camera's different time zone in different window at the same time.
3. add POS Function, pos text search function, pos data monitor function realtime.
4. add Access control system integration function, acu event seach function and event monitor function realtime.
5. add alarm send SMS function, when dvr get any disk error or dvr abnormity reboot, dvr will alarm and send SMS to user.
6. add 1280*768 wide screen display function, now dvr&nvr both support 1024*768, 1280*768, 1280*1024 three display way, 
    dvr & nvr adjust display mode automaticly according to user VGA setup.
7. add ptz speed adjust function for ip camera or dvs.
8. add dvr support max 32 ip cameras, and sub stream select function, add preset call for ip cameras in dvr. dvr can work for ip product sole even if no dvr board.
9. in nvr client, add instant playback function, also add remote sub stream setup function,add sub stream parameter adjust feature
10. in nvr client, add sub stream to main stream auto switch feature when enable network bandwidth auto adjust feature.
    please upgrade dvr server and nvr client at the same time.
11. change network interface, user must upgrade nvr client and dvr server synchronization.
12. dvr server support windows vista, but must upgrade new driver for vista. but at preset audio can't be adjusted in vista, this will be improved in future.

//V5.39B version  modify (2008-2-29)
1. modify disk check mode to avoid disk check error cause change record disk fail(from V5.33B).

//V5.38B version  modify (2008-1-7)
1. add 1280*1024 VGA Resolution support function,  now dvr server software support 
    1024*768 and 1280*1024 VGA Resolution, adjust display mode base on VGA card setup.
2. Modify record disk select function, and can remain some space for each disk.
3. add dual monitor support function, after enable this function, setup and playback will display to second montior.
4. NVR Client software support DG Series board.
5. modify some small bug.

//V5.36B version  modify (2007-11-21)
1. Upgrade board sdk to support newest board, and upgrade player and mobile client etc.
2. fix burn dvd disc error, in last version, pack miss some file.

//V5.35B version  modify (2007-9-18)
1. upgrade burn cd feature, support DVD disc backup directly, max support 4.3G DVD disc. 
    and user can erase DVD-RW disc and write again, all work needn't install third burn software.
2. upgrade backup data feature, remove file unite function when backup, so that backup procedure is faster.
3. upgrade player.exe and player SDK,  compatible with ip camera will be selt soon. 
    and ip camera must upgrade this version. previous version can't decode ip camera.
4. modify other serval small bug.

//V5.33B version  modify (2007-8-20)
1. fix bug: when pda connect dvr server, dvr server crash.
2. fix bug: playback burn CD ready file select.
3. fix bug: IP camera motion alarm setup error.

//V5.32B version  modify (2007-6-29)
1. modify playback record time display way, now user needn't open all camera to check its reocrd time.  
2. change board  SDK,  fix HC series board 4CIF record  to QCIF bug.
3. fix serval small bug.

//V5.31B version  modify (2007-6-12)
1. Add Preset remote setup feature, user must upgrade server and client to support this feature;
2. add IE call preset feature;
3. modify other serval small bug;

//V5.30B version  modify (2007-5-25)
1. Add IP Server(or IP Camera) support feature in DVR Server,  User can build a hybrid DVR that will accept both 
         analog video input  through DVR cards and IP camera/video server digital input through an Ethernet port,  and
         our MD Series board can decode IP camera/video server image , output its image with dvr board image altoghter
         to TV monitor.
2. add PDA client download feature, user can access dvr server "http://DVRIP/mobiledvr" to download mobile client directly.
3 change board  SDK,  add newest HS series card support feature;
4. Add setup parameter export and import feature. user can export /import all setup parameter, include PTZ setup.
5. add Screen Keyboard feature in DVR Server, Double click any Edit frame to open Screen keyboard to input text info.
6. Add alarm device, user can parallel connect two 7616 alarm device via rs485 to build one 7632 device with 
     32 DI 32 DO, but need setup different address to two 7616;
7. Modify PTZ preset control mode compeletely in dvr server and client. so user must upgrade server and client at the same time 
    to avoid version compatibility issue between different version.
8. Modify user right setup mode, and PTZ right control way. detach local user right manage and network right manage, more flexible now.
9. Modify OSD position setup way, it will be more flexible to adjust OSD position.
10. Modify Grab image save mode, after install software, when grab image first time, user can select save folder by self.
11. Modify NVR Client device add way, when add one remote device, it will connect at once and get its camera information.
12. more feature changed, please read user manual detailedly 

//GV5.19HC version  modify (2007-1-19)
1. fix "abnomorl program error" completely , when write disk error, popup alarm window and "beep" alarm;
2. add removable HDD record feature and record HDD selctable feature", basis this, user can add or dec HDD when software still run;
3. modify live video right manage way, don't hide all camera;
4. modify some other small bug;

//GV5.18HC version  modify (2006-12-20)
1. add alarm popup and send email message feature when "camera stop record" ;
2. add "cancel" button when backup process;
3. in NVR client, add "software start auto connect" feature and "auto Reconnect when network disconnect" feature;
4. in NVR client, add CPU usage display feature;
5. modify some other small bug;

//GV5.16HC version  modify (2006-11-13)
1. modify motion detect and video loss  alarm linkage deal way;
2. add display status save feature, after dvr exit and restart; it will restore previous status automaticly;
3. all network port setup change from 1100 to 60000;
4. add feature: when camera alarm, system popup full screen circularly;
5. upgrade board SDK, support 4016HC board, and fix bug 4.2SDK can't display B/W video and 4016HCS can't do  TV output in matrix card;
6. modify some other small bug;

//GV5.15HC version  modify (2006-10-13)
1. modify software operation way change record path and delete old data, sure system don't lose any record data when change path or delete old data;
2. modify video lose record deal way, when video lose, still record;
3. Add Reverse play feature in playback program;
4. in NVR Client, add  add matrix TV output multi-select feature, user can select output 1,2,4,9,13,16 split mode in TV port base on decode channel amount;
5. in NVR Client, add netowrk automatic management feature, when use don't see video, stop video quest automaticly to reduce bandwidth;
6. modify serval NVR Client right manage bug.

//GV5.13HC version  modify (2006-9-7)
1. add instant playback pause and single frame play feature via shortcuts keybord;
2. modify board work mode setup bug;
3. notice: from 5.12HC , in new 4.2 SDK, 4016HCS doesn't support 400XMD board TV output;

//GV5.12HC version  modify (2006-8-18)
1. add backup multi-camera feature at a time.
2. add burn CD feature, user needn't install other burn CD software, when backup, user can burn CD directly .
3. modify PTZ feature, for some factory PTZ, add speeddome menu and autopan feature.
4. Upgrade SDK to 4.2, add 4008HFI board support feature, 4008HFI board is 8 channel realtime full D1 board.

//GV5.10HC version  modify (2006-7-10)
1. modify instant playback feature, user can playback video in space window, needn't playback in preview window.
2. Modify Client Group Setup mode, in same connection, user can select multi-camera, when begin cycle feature, 
    multi-camera can cycle display in same window and save in same file.
3. add max network video connection amount feature, user can setup dvr server limit max network video num, default 128.
4. add record and network video advanced setup feature, user can setup data bitrate by himself. but before setup this feature, 
    please read manual carefully, or else, it can cause bad video quality.
5. add for NVMP software video connection right feature, new client and new server and older version connect each other, 
   maybe it will cause error user right issue,  so, if use new version, please update server and client at the same time.
6. add playback to TV monitor feature
7. modify board work setup way.

//GV5.07HC version  modify (2006-6-14)
1. cancel test register, if not license, software will work according to test version.
2. Take off "NewGina.dll" Install way, User can use windows Remote Destop Tools.
3. Modify Web Client Login Fail display way.
4. Add Alarm Send .Wav File Feature, so when upgrade this version, please upgrade client and sever at a time
5. add Keyboard Shortcuts feature, please see manual for Shortcuts define.
6. modify PTZ preset Tracking feature, now,  multi-PTZ can Tracking at a time.