If I want to send videos of a baseball to player to different colleges, how should I send them? CD R or DVD?

DVD hold a lot more but some coaches have aniquated computers that only handle CD. I would ask them . We had both but hopefully most caosches handle DVD now.

I would recommend DVD of those two choices. The best way to send it is actually to send it in an email. It is much easier for a coach to either open an attachment or click on a link to watch the video than to actually load the disc into a computer or DVD player and then play it. Your best chance to get it seen is to email them if possible.