hard trance/style id's please!!

need sum help on these please!!

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cheers

4 is Lost In Dreams on Club Quake
6 is Sa.Vee.Oh - NoHacker.exe or Loop Hole (think its Loop hole actually) on Mazeman - always get them mixed up
7 is Omega Nine - Blow Back on Anthem
8 is Terra V - Bring Back The Future on Fakten
16 is a remix of The Gate - Iron Eden done by M-Zone
17 is Tube Tonic + DJ Shandhar - The Secret on Mental Madness
18 and 19 are some M-Zone productions/re-edits, a mash up of a tune called Adventures of Dana and Condor - Sky