I'm using 1500C now. I bought a new machine yesterday. A friend used 1000C before. There is little difference between the two, but one thing about 1500C is very bad (maybe I didn't find it), that is, there is no sound wave during video recording, which is undoubtedly a big problem for a wedding photographer. If the microphone is dropped during video recording and the sound waves are not displayed, it will be miserable. The biggest difference between them is that one is a DV tape (1000C) and the other is a digital electronic direct video file. Feeling 1500C is better than 1000C. That's all, nothing else.