Hi Oliver,
If you choose PAL as your export settings under TV standard, the frame rate will automatically change to 25.
In Encore, you can set it to play in all regions, or just region 2 in the build area.
You also mention BLURAY and DVD, not sure which one you are working on.
If you are working on a BLURAY, you will be better off with encoding to H.264. I usually do an uncompressed export (or ProRes) from Premiere, and let Encore encode to H.264. I find that if you encode to H.264 BLURAY from Premiere, Encore will still force another encoding.
Vince Becquiot
Indigo Live | Kaptis Media
San Francisco Bay Area