10 gigs for a minute

, were you been using fraps? I'm sure it records uncompressed videos- not sure what codec it uses. youtube uses MP4-H264-AAC codec (that's why we can watch every new uploads on all devices), and I guess it 'killed' the quality during conversion, that happened also to my animations while I've been recording them into AVI format within Anim8or. I've been installing k-lite codec pack and tried to render videos in many codecs but that didn't help much- video's quality were always degraded on YT.
Finally, after experimenting with a lot of software I've started rendering in PNG pictures and connect them into video with Blender. That way I do slow renders of scenes with Anim8or only once, and can experiment with video editing with Blender (I find Blender very complicated and slow for simple 3D animation and I don't use it for that- it gave me a lot of headache).
I've noticed something interesting with Blender-
it also saves images at 72ppi by default and that value can't be changed, it has that same value within various picture formats. Having 254ppi in BMP format Anim8or is superior when you render BMP image but I guess the difference should be only visible on printers and ultra HD monitors.
72ppi is the optimal value which works great for pixel density of average computer monitors. I don't have ultra HD monitor so can't tell the difference, but if someone does I'd like to hear that, just render some image in 4K resolution with anti anti-aliasing and save them in BMP and PNG format for comparison.