First demos are rarely the best... We've seen this with almost everything released for years now. Why this surprises anyone, who knows?

Add to that, different sales regions put out their own demos, with better or lesser quality.

Personally, I believe that MOST current arrangers that have master EQ and compressor sections, the settings are too aggressive. Bass and treble is overhyped, and compression squeezes what little life an arranger has completely out. Unfortunately, modern CD's are compressed and limited so hard, this is what we have come to expect. But if you want to sound 'live', take it all off!