I want to change the song of omai karaoke and i am stuck because if i rename the file into zip and change some files and reaname to jar and trying to install my phone says invalid file..

I want to change all songs in omai karaoke, i've changed MF file..and now i've recompressed into zip rename into jar format but it 's a not a valid file says my phone..
Anyhelp to the correct directions plsss??

If anyone can redone for me here all files..

Luke

Anyone can help me..plsss?