As I understand it, the standard for digital TV-video editing is

720x480 at .9 pixel aspect ratio for 4:3, 1.2 pixel aspect ratio for 16:9, or 640x480 on a computer screen. In all cases, 480 lines of resolution.

So why does everything I read about NTSC, and about MiniDV, mention either 520, 525, 530 or 'more than 500' lines of resolution?

For example:
http://www.canondv.com/gl2/f_dv_format.html
http://www.its.bldrdoc.gov/fs-1037/dir-025/_3611.htm
http://www.powerdv.com/cgi-global/ge...i?p=dv-gvd1000 (see the specifications at the bottom)

I'm using a Canon GL2 and Premiere 6.5. Premiere won't sucessfully capture video at anything other than 480 lines.

Maybe I should send an email to canon but I'm hoping one of the gurus here knows what's up.