Karaoke video player design

Hi, ? I have posted similar karaoke project in the past and I haven't been able to find the right person to implement the video player. Here is what I need and the problem i am facing: 1) Currently I am working on the karaoke system. My biggest issue is the video / audio player. In the market, I can find a lot of video sdk (Movie player pro or leadtool multimedia player) These products are very useful according to the video but I have a hard time to deal with audio. As we know, MPeg1 has 2 channel (left and right) I need to set up the correct channel so I can display the music with vocal / non vocal (music wih human voice) As for Mpeg II (DVD), there are many different audio compression such as (AC3) etc, so I need to pick up other channel. The sdk I found either support mpeg I audio or mpeg II audio. I have to somehow download the mege II decoder in order to hear the sound. the problem is I don't have control to pick the right channel. There fore I need someone who really know this field and help me to developer some type of program to handle different kind of audo compression for karaoke system. Please also give me suggestion if you think there is other better way to do with other sdk or use special video card to do the decompression. I certain prefer to use c# but if c or c++ is necessary for the development.? would also consider it .