Natively you can not use their video in PPT, it must be converted to
something acceptable to PPT. However, YouTube videos are of low resolution
and quality and conversion often lowers the quality further. I'd suggest
contacting the content creator and ask them for an original copy and
permission to use it.
Austin Myers
MS PowerPoint MVP Team
Provider of PFCPro, PFCMedia and PFCExpress
www.playsforcertain.com