I would talk to a few local photographers. My experience is that not everyone has a DVD of their wedding made but they all have photos taken. So talk to photographers and see if they will mention you to any clients they have who would like a wedding DVD made but are on a tight budget. You can always offer to pay a referral fee if it works out too.

Having said that, I am generally dead against this approach of starting out really cheap and then up the prices once I get established. This subject crops up on all sorts of bulletting boards and the general consensu is that it never actually pays off. Start with low fees and everyone will complain when they go up. Also, and this may seem strange, charge low and people assume they will get rubbish. Charge high and they assume they will get quality and so come flooding in. I've heard more than once of people getting many many more orders once they simply doubled their prices.

Proabably the best way forward is to offer to do friends wedding as a favour and get a showreel together from that.

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I'm not young enough to know everything!