Almost all free multimedia player already support this kind of format, so you don’t have to worried about this.
You don’t lose any technical quality with Ogg Vorbis. It can compress down to a smaller size than MP3 while still sounding good. Best of all, it is designed to be completely free of patents and does not require the use of proprietary software.
Now, my question is If ogg format is free, how about the song it self ? Many song creator and singer create songs to sell and we can enjoy it. We must pay for these song. So, if you’ve bought those CD’s and convert it into ogg format. Yes when you do this step you’re legally using this song to play on, but if you already received or downloaded from the Internet in ogg format and you didn’t buy it. :) What do you think about that, any comments ?