tools to convert WebM to dvd or mpeg2 mp4

prefer direct conversion to dvd
looking for recommendations

also general info on quality comparisons of the various format choices

source choices include mp4 ,flv and webm
for some videos on youtube i would like to DL and convert

dvd's go to a friend who is not computer literate and does not have a PC

at my age i more than 'just a few' friends that fit in that category

thanks