I have recently bought a Panasonic GS-35, which writes to DV tape

So far, I have successfully downloaded a tape with 35 minutes of video.

I am using Panasonic MotionDV STUDIO LE for DV (supplied with the camera). I
seem to recall it writes files in.avi format, which I have then been able to
edit using the same software or Ulead DVD MovieFactory 3.5 Suite Deluxe
(supplied with my DVD drive).

I now have a few tapes of 60 minutes and, when trying to download the first,
I can't find enough disk space to download it. I keep getting messages that
I need 0.1 more GB than is available. For instance, it first said that the
tape is 16.1 GB but only 16.0 GB is available. When I released more space,
the same happens. Eventually, it said the tape is 24.6 GB but only 24.5 GB
is available. (Or figures of that order.)

So the question is:
How many MB/GB per minute of DV tape?

--
Cheers,
Trevor L.
Website: http://tandcl.homemail.com.au