I am baffled. I recorded my voice using AUDACITY version 1.3 beta at home, and exported to an MP3 file using their LAME conversion plugin utility. I was able to play the MP3 file at home using the Windows Media Player (win7). However, the WMP at my office opened the file and played through it without complaints but produced only the "sounds of silence". I have windows XP at the office. Could it be that the Windows Media Player at my office needs to be updated to be able to play MP3 files? I thought it would have given me an error message if it was not capable of playing MP3.