EAC3 is Enhanced ac3 or Dolby Digital Plus
Ac3 is Dolby Digital
Obviously Eac3 is superior to ac3, provided your hardware supports that,
Hence its just an experiment to find out your opinion regarding the audio.
please let us know how they both sound to you and if at all your hardware is able to decode and play the audio.
Please Note : these are re encodes of the re encode might not do justice , will upoload better samples in a bit