DvDneXtCopy Iturns

Converted a bunch of itunes files using iturns. Have everything converted and in *.ogg file format. How do I convert these into MPEG’s for use on mobile devices?.
Thanks for the help

Just curious as to why you didn’t just convert them to mp3 in the first place.

I think and if I remember right iturns the free version doesn’t convert to mp3. It might be a bug but it has been a while since I last had a question over it.