Use ogg and not mp3!
Mp3 must be the most widely used audio format. But it is not without its problems. Especially not so for open-source advocates. See, mp3 is 1) closed-source and 2) demands royalty for implementation. Want to know how much they ask? Look here for an answer. See how much it would cost for let’s say a linux distribution that wants to inlcude an mp3 codec so people can play their mp3 music files? I wouldn’t want to distribute one with 100.000 users downloading it. Big companies can afford this, but for almost everyone else this isn’t feasible.
But there is something you can do about this, and so help open-source initiatives. The answer is an open-source audio format know as Ogg Vorbis. What is this? Let’s quote their FAQ:
Ogg Vorbis is a new audio compression format. It is roughly comparable to other formats used to store and play digital music, such as MP3, VQF, AAC, and other digital audio formats. It is different from these other formats because it is completely free, open, and unpatented.
If you read their FAQ you will also find other benefits (such as smaller size) besides it being open-source.
But if you rip your CD’s, they are automatically converted to mp3, right? Not necessarily. There Vorbis site lists software for commons operating systems to play and rip your CD’s to the Ogg Vorbiss format, straight into .ogg files that is. There is also software listed there to convert already existing .mp3 files to .ogg format. One that isn’t listed for linux on the site is “audio convert“.
So actually there is no reason not to start using .ogg files instead of .mp3. And why not encourage your friends to do the same?
edit: I stand corrected: “Ogg is a container format, Vorbis is an audio codec.”