What type of camcorder did you use twice before? Was it easy to use, did it produce good pictures and sound and did you just watch back the video or did you do any editing on it? If you intend to do editing (almost everyone does at some stage whether it takes a month or six months) then I would suggest Mini DV tape format but if you can't see yourself doing any editing then maybe Mini DVD is what you should go for. It's a case of record the event, take the disc out and insert it into your dvd player and that's it. It's something you need to think over before making a final decision.