Two advantages of Ogg Vorbis:

1. It will always be free, and updates will always be improvements - there will never be stupid copy protection issues or other restrictive practices
   
2. Whereas some cheap MP3 encoders produce less than optimal code and may infringe patent/licensing requirements, the latest Ogg encoder will always be the best there is, at no extra cost.
   

I must say I am amazed at the quality of sound achievable by RA at low bit rates compared with MP3 - I haven't investigated scientifically but it does seem to work well on the subjective judgement of listening to BBC webcasts.

But just for moving files from one computer to another - why not burn them onto CDRs and move them that way? (as MP3, OGG, WAV or whatever)

Anahata