That's right, OGG files deliver a higher quality for the same file size.
However, if you create your MP3s at very high bit rates (such as 256 or 320) using a good encoder, then you won't really be able to tell the difference between an MP3 and an OGG.
Since, on the empeg, I can use any size hard disk I want, the quality-for-space tradeoff of OGG versus MP3 is therefore irrelevant to me. So, in terms of the empeg, the differences between OGG and MP3 are:
- OGG files require me to run an unstable alpha version of the player software if I want to use them.
- OGG files do not have as many software tools available to organize, tag, and edit them.
- OGG files work on very few other players, thus limiting my ability to move my songs among various devices and computers.
So for me, MP3s still win hands-down.