With xsplit, change the file output to MP4, however just look around to see what programs there are and fiddle with them. This way you get a bit of understanding as well. However youtube accepts FLV files as standard so you can just reduce the recording quality on xsplit as another option.
How do I do change it to MP4? I'm used to converting stuff with TMPGEnc and stuff, but there's a lot of quality loss in that method
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