I'm converting videos using Xilisoft Video Converter with an i7 950 and even if I convert 6 videos at once I get a max of 25% load. Is my CPU bust?
I have the Ultimate version of Xilisoft, it depends what type of video conversion your doing converting a DVD video to mp4 or a WMVHD to Blu ray. I have a Q9450, 8800GT and when doing HD video it will use more CPU. If doing HD video conversions i see 60-70% usage via task manager readings.
If you can run multiple sessions of the program at once then use the processor affinity (from taskmanager (right click task and assign affinity)) and assign a core to each task manually.