I'm sorry for the General's problems.
Since 2010 I've had excellent success with Pazera MP4 to MP3. Fast and accurate conversions.
Two more tricks:
Let MP3gain analyze and adjust mp3 files so that they have the same volume. Using since 2005.
Use MPtrim to trim dead air from the beginning or end of your tracks. Using since 2005.
All of this software is FREE.
Thanks again.