Size of WAV file? More than 2 or 4 GB? Some programs choke on sizes exceeding those limits.
Not sure I understand your comments about my VBR settings.
Not sure I understand your comments about my VBR settings. For converting Wave files from CDs that I rip, I have RazorLame set to create an MP3 file with a max bitrate of 320k and minimum bitrate of 128k and quality = 0.
Secondly, -q0 (quality 0) is actually advised against