Video post-production software firm Zoo Digital rocketed in Tuesday morning trading after saying the crucial entertainment market had 'stabilised'.The Chairman Roger Eynes said: "At the time of our final results announced in July of this year, we stated that the company had returned to profitability in the second half of the year, and I am pleased to confirm that this has continued through the start of the new financial year."Our most dominant market, the filmed entertainment industry, appears to have reached a certain level of stability after a prolonged period of turbulence, which has led to improved levels of throughput to ZOO."The shares were up 48% by 9:45 and have now gained 95% since the beginning of the year.BS