Do I have to tell you about using lossless file types or you already know <.<?
I go for more compatibility and file size, but have at it if you'd like.
Then don't use MP3; use OGG or FLAC. OGG and FLAC is more compatible on all platforms. MP3 is covered by patents and is unfree, so it's evil (IMO it's unethical to use it even if you CAN use it on Linux).
Also, file size isn't necessary if you are going to burn it anyway. Put up one lossless (FLAC) version for burning and one OGG version for general playing on the computer. 56Kers with 10 Gig use the OGG, and 512K+ with 200+ GB use the FLAC.
Usually a filesize is like this:
WAV (raw): 30 to 50 Meg
FLAC (compressed losslessly) 10 to 15 Meg (actually unfolds to the 30 Meg version on decompression)
OGG (compressed lossy): 3 to 8 Meg (unfolds to some fake piece of crap that STILL take up 30 Meg on decompression)
What I'm saying is 80 Meg of OGG unfolds to 700 Megs of data on a CD, but still is 80 actual Megs (it's filled with zeros inbetween). While a lossless verision of FLAC unfolds to 700 Megs of data on a CD even though it's compressed to 300 to 400 Meg. So you can say that with lossless you have a bigger transfer (which you go through ONE time) and then get the original sound (which you can keep FOREVER). Ain't that good? Well, at least you should make it an alternative. And just make sure the lossless version never has been encoded lossy during the process (and actually, the lossy version released should not either until the very very last stage).
Hehe, I'm just an audiophile xD (And I want to keep the original soundwave as much as possible in digital)