I bought a Moser Baer Tamil DVD and I found the video and audio quality to be good.The Video quality is not as good as English DVDs but its ok by Indian standards.But the big let down was the fact that the DVD din't have a 5.1 Dolby soundtrack,it only has a 2 channel Dolby soundtrack.Right now all new Tamil DVDs expect Moser Baer have a 5.1 Dolby Digital soundtrack and some also have a 5.1 DTS soundtrack.
I hope they would atleast include a 5.1 Dolby digital soundtrack in future.