I take it that by slides you mean transparencies, for that you will need to scan them into a format recognisable by a DVD player. Jpeg is the format most DVD players will recognise. To do this there are two ways:
1. The cheapest and easiest is to take them to a film processor, any high street one will do, and they can transfer them for you at a very reasonable cost. Stipulate that you want them in Jpeg format for viewing from a DVD player.
2. More expensive, you can buy a film scanner and do it yourself. However these scanners do not come cheap. Epson do a very good one.
Hope this helps.