Have been using PE4 to make dvd's of kids sports events and would like for other parents to be able to pull video from the dvd. PE4 seems to put a lock of some type on the dvd so it can not be copied. Is there a preference setting or specific video output type to allow the dvd to be copied?
As Paul states, there is no "copy protection," on any DVD burned from PE. As a matter of fact, there is no copy protection available for any burned DVD - only from replicated DVD's (pressed from glass masters with certain flags set when you go to tape, or master for the replication house). If your DVD's play on the clients' player/computer, they should be able to rip the VOB's to something editable. A bit will depend on the hardware and software, that they have. I would guess that it is this aspect that is creating the problem for them.
If you wish for the clients to have the best access to the material, you might wish to Export as a muxed AV file, then burn a data DVD for them. If they wish to just re-arrange the files, then an MPG-2 would work. If they wish to edit more extensively, then I'd give them a DV-AVI file for that purpose. Maybe offer a playable DVD and a data DVD, for a nominal charge.