The extracted MP3 files play at wrong speed and/or shows wrong length. What's wrong?

This is nothing wrong with the MP3 files created with DVD Audio Extractor. Some MP3 players (hardware or software) have problem playback 48000Hz audios which is the default sample rate on DVD. And some players can't deal with the Variable Bitrate (VBR) MP3 format.

In case this happened, please simply select 44100Hz sample rate and stick with Constant Bitrate (CBR) MP3 format. You can also try other MP3 player software like foobar2000.