Hello, I'm facing exactly the same problem with my Casio-Videos (H.264); using Win-XP SPII, NVidea Audio V4.62, Athlon XP 2600+ . The Quicktime-Player works well, but the Processor-Usage is at the edge=100%. So I'm trying the VLC-Player, but there the sound is horrible stuttering :cry: Luckily my Vi...