Mon Jul 20, 2015 9:04 am
What's the framerate of your preset?
I assume you're not going to use footage in YouTube since you're after quality.
Here's the thing.
With 1280x720p 30fps the codec uses 664 Mbits per second. That's 83MBs per each second.
60fps will have that doubled. If you don't have write to disk cache enabled then you're screwed. Even if you do... it won't save you during longer periods of time.
Under perfect conditions a hard drive can achieve a peak write speed of 120MB/s. Fragmented drive can go as slow as 20MB/s. The way the data is stored on platter is that the more data you have, the lower the writing/reading speed on the remaining space will be. Average speeds under defragmented conditions are around 60-70MB/s.
To put it short your own overwhelmed hard drive might be causing the spikes. Not mentioning that it might be reading game files during the capture.
This codec will fill your entire hard drive in less than an hour.