Never "dump" them - I've gone
through the 'gotta slim this down' stage several times, and always regretted
throwing out some shots later on.

A CD can hold a hundred or more pictures, a DVD nearly a thousand.
There's no reason to "dump" anything, except perhaps as you're shooting
and need more space on your card.

Jose
--
Get high on gasoline: fly an airplane.
for Email, make the obvious change in the address.