For anyone else who found this completely opaque, it's about tickets to the annual Chaos Computer Club conference in two months in Berlin: <a href="http://events.ccc.de/2011/09/09/cfp-for-28th-chaos-communication-congress/" rel="nofollow">http://events.ccc.de/2011/09/09/cfp-for-28th-chaos-communica...</a>
Hate to spoil your excitement, but 'discounted'???
It merely states that certain percentages (half/quarter of all available tickets) will be sold at certain dates.
Maybe the title should be corrected to reflect that...