I have 3 JVC HD7's (60 GB) and 1 JVC GZ-MG130 (30GB). I do action videos, 4x4 dirt racing, rodeos, and the odd tractor pull. I need to be able to get into and out of trouble quickly. These two cameras complaiment each other well. Although the GZ doesn't shoot HD, it is small and light with almost as good of quality. In HD I have 5 hours of video on the HD7. How 'bout that DV? 5 hours? I think not! I can record a whole 8 lap race in HD X20 and still have HDD space left for the one off interview with a driver. For doing what I do and how I do it, these JVC HDD cameras are the cats a**. The HD format is 1080i.
The negitive stuff?
Well each camera stores it's HDD files differently. The GZ uses *.mod file format and the HD7 uses *.tod format. They come with cyberLink DVD Producer software that is 'old and slow' to convert your files to *.mpg files. A waste of space. Just change the filr extensions (both *.tod and *.mod) to *.m2t and they go right in Sony Vegas without a hitch.
The built in lens covers on both cameras are a very intricate group of moving parts, so to keep them out bof the dust, UV filters over the lens.
Oh cost, in USD the HD7 is about $1600.00 and the GZ is about $600.00. You can find them cheaper but most of the time they are imports with some/all writing is not english.
One last thing, why didn't I choose Sony? I did I have a DCR-TRV480 but it doesn't like the dust much. And I didn't choose any HDD Sonys because I needed viewfinders and not LCD screens. So don't yell about no Sony. PS these are my personal views and have nothing to do with either JVC or Sony, like the old american TV show Dragnet, "Just the facts, nothing but the facts".
C Ya'