Bootleg titled "Ga Ga"

Hi, QZ people. long time no see. :)
Could you let me know the playing date of this boolteg? I bought it on the shop, but the date was not printed on it. I really want to identify it.

http://www.diskheaven.co.kr/front/php/product.php?product_no=5675&main_cate_no=&display_group=


http://www.diskheaven.co.kr/web/product/medium/alexi77_5675.jpg

http://www.diskheaven.co.kr/web/product/big/alexi77_5675.jpg

CD 1
1. MACHINES ~ TEAR IT UP
2. TIE YOUR MOTHER DOWN
3. UNDER PRESSUURE
4. SOMEBODY TO LOVE
5. KILLER QUEEN
6. THE SEVEN SEA OF RHYE
7. KEEP YOURSELF ALIVE
8. LIAR
9. IMPROVISATION ~ IT'S HARD LIFE
10.STAYING POWER
11.DRAGON ATTACK
12.NOW I'M HERE
13.IS THIS WORLD THAT WE CREATED
14.LOVE OF MY LIFE

CD 2
1. STONE COLD CRAZY
2. GREAT KING RAT
3. MACHINES (KEYBOARD IMPROVISATION)
4. BRIGHTON ROCK
5. HAMMER TO FALL
6. ANOTHER ONE BITES THE DUST
7. CRAZY LITTLE THING CALLED LOVE
8. SATURDAYS NIGHT ALL RIGHT FOR FIGHTING
9. BOHEMIAN RHAPSODY
10.RADIO GAGA
11.I WANT TO BREAK FREE
12.SHEER HEART ATTACK
13.WE WILL ROCK YOU
14.WE ARE THE CHAMPIONS
15.GOD SAVE THE QUEEN

title: GAGA
maker: "QU"


thanks for reading this.

It contains Staying Power so at least you have a reference. First part of The Works Tour.

Maybe if you put a small sample....

Hello, this concert is from the National Exhibition Canter, Birmingham England September 1st. 1984.
More info here:
http://www.queenconcerts.com/detail/audio-recording/629/01.09.1984+-+Concert:+Queen+in+National+Exhibition+Centre,+Birmingham,+UK/

Thank you!