benbencha

motion jpeg is a tradditional compressing technology, with big size file. Its advantagte is low cost and acceptable on court. Its shortage is need big storage HDD and poor network transimitting. mpeg-4 a new technology, with high compressing capability. Its advantage is small file size, good at saving storage space and transmitting via network. But it has shortage too, high cost and not acceptable on court. Which technology is popular or what kind of applications will you use mpeg-4?

What's the most important feature of DVR? Resolution? Recording speed? Network function(preview or playback via internet)? Reliability? Low price?

have you ever experienced PC based DVR with Linux operation system? what's the advantage and shortage? Shanghai Chengfeng Digital High-tech Co., Ltd.( Chenova )

some customers often ask me some questions about auto tracking dome. I am not sure it is workable or not. Anyone ever use it? What are your comments? Shanghai Chengfeng Digital High-tech Co., Ltd.( Chenova )

Nice to be here. I am edward from Chenova(the only comprehensive security surveillance equipment manufacturer in China). Hope to make friends with you guys.