From the LAME USAGE file that is in the zip file...

VBR is a true variable bitrate mode which bases the number of bits for
each frame on the measured quantization error relative to the
estimated allowed masking. VBR is currently under heavy development.
Right now it can often result in too much compression. I do not
recommend using VBR. But if you must, you should at least use a
minimum bitrate of 112 kbps.

When I currently convert a WAV file to an MP3 file in EAC (or with LAME), it doesn't seem to populate the tags at all. Wish there was an easy to follow guide to using EAC... This is a PITA.

- Jon