Watch this video from Prague a couple of months ago: http://www.youtube.com/watch?v=5vs_ZeMbTAs&hd=1 It's hard to see what's going on with the mixer and turntables, but watch the Serato screen and you can clearly see what he's doing mixing-wise. For example his transition from System to Ill Behaviour at around 5:20 - the transition happens with only one Serato track playing. So both System and Ill Behaviour were on that one MP3, evidently. This would be excusable if it was a mash-up, but it's not, it's a (fairly rubbish) mix. He then mixes into another Serato track at 6:24 (notice the top one stop moving) but it continues to be Ill Behaviour, with his next tune pre-mixed in (listen to the drums). Secondly, watch the bit from 2:14 to 3:00. The track he mixes out of the Let You Go remix (I don't recognise it) drops when it's clearly on the same Serato deck as Let You Go (the top one) - if you watch the waveforms, the waveform on the deck it 'should' be on goes into near-silence at about 2:44 for quite a while. The camera looks away for a while, and when it looks back at 3:36, the track I don't know is now on the bottom Serato deck and the Vocals from System are being mixed in - apparently on the top deck - and it's all well and dandy until at 3:50 he takes the tune out of the top deck...and both tunes remain playing. I'm pretty sure he has his transitions pre-recorded, and then he matches up the tracks that are the same - i.e., he has 2 MP3s with Ill Behaviour on it: one is an MP3 going from System into Ill Behaviour, and another is an MP3 with Ill Behaviour going into whatever the next tune is. Someone please tell me I'm wrong.