If it's a once-off job, I think the Fuji centre in Grafton street do it (my sister did this a few years ago). But you may well find cheaper...
If you envisage doing this more often, and have a PC at home with a CD-burner, you might pop into your nearest Aldi next week. It doesn't seem to be on their website yet, but they're doing a Video to .mpeg converter thingy for Eur49.99 (and lots of other tasty computer bits!)