forget Dazzle! ... i have Studio 10.8, Studio Plus 10.8 and Studio Plus 11.1.2 and Dazzle DVC150 and Dazzle DVC170 ... they are not compatible! (all software and drivers were properly installed ... of course only one program at a time)
i could capture video but the audio is almost inaudible ... if you boost it later, it distorts
Pinnacle Tech Support emailed me to say that THEIR Dazzle DVC170 will not work with THEIR Studio for analog capture and that they couldn't get it to work, either!
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however ... if you got it to work before ... the safest thing is to uninstall everything ... 1) download and run their RegCleaner, 2) download and install their latest Dazzle driver for your version of Windows (without Dazzle attached!), 3) reboot and attach Dazzle ... your system should recognize it now ... if not, retry steps 2 &3, 4) reinstall Studio .... then go to capture and you should see Dazzle as a capture option
after all of this, i have not gotten a good sound ... once done with a project, i make a movie in AVI format, then go to an audio utility program (i use Adobe SoundBooth) to correct the sound and then use a DVD burner software (i use Adobe Encore) and you have a great copy of analog videos