I'm testing Edius 6.5 with a new AVCHD camera and so far the results look very promising: I can play three layers of 1920x1080 footage (17 Mbps) with 33% opacity on the top two layers without running down the buffer, and render back out to AVCHD or H264 at 1:1 time...

...on my laptop. Nicely done GV!

- Kevin
Edius 6.5 on Lenovo W520 laptop: Intel Core i7-2720QM @2.2 GHz, Nvidia graphics card, 8GB RAM, Windows 7 Pro 64-bit. Canon Vixia HF-G10, three Sony HDV video cameras and one Canon 7D.