Unsupported file format solution

Pease i propose that just like as other dj softwares(virtual dj,Serato dj), djay pro for mac should support all file format such as mpg,VOB,mpeg,wma and others since converting songs to the supported files is a lot of work and as well the song lose its quality and some info which is not good for djs.
I love djay pro but do feel so limited when i drop a song and the error warning pop up.
Advise and Please help.
Thank you