i have recently made some in game videos using fraps, the size of a 1min 30 second video is 2.5gb! the maximum youtube allows you to uplaod is 100mbs. how do all these other, longer, gaming videos get on there.
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the only way that video can be 2.5 gb at 1min 30 sec is if you attached multiple files to it. If the video is high def that would be part of the problem as well.
What resolution did you record at? 1920x1200+ will give you some big file sizes.