dude its not a real battle its just about giving it a go, no one is gunna rip you about the quality, only comment on how you can improve and if they do give ya a hard time well get them to do a better mix
if its a big party i mean at least 80 + people do it for free but make a deal with the person running it that they have to hand out your business card i guarentee you will get at least 1 gig for every 20 people that are there and then you charge for there party because they know what they are getting and they obviously like it and would be willing to pay you more then what they would of if you had never been heard
i just think that after i spend my $20 bucks on a crate worth of mp3's that its a joke i still carnt play them allowed without infringing on copyright as far as im concerned after i pay for a song a own it and as long as i dont duplicate it and give it away or sell it i dont see how i am doing anything wrong