Follow these instructions to disable macrovision:

If there are applications where you must capture a Macrovision
copy-protection clip, we found that this can be done by doing
the following:

1.) Press and hold the Input Select button on the front panel
until you see the color bars appear.

2.) Keep the button pressed (about 15 seconds) until the color
bars disappear. (Note: with some capture cards the color 
bars may not appear. In any case, keep the button pressed
for the full 15 seconds.

3.) Macrovision copy-protection is now disabled until you switch
off the ADVC-100.