OK if your making the videos yourself then you want to pick between mpeg-1 (normal VCD) and Mpeg-2 (aka DVD)... Of course you can fit a shorter amount of mpeg-2 video on a CD, which makes it a Super VCD (SVCD), while you should be able to fit over an hour of mpeg-1 on a CD ~650MB. And yes the file sized do get big. I personally would use mpeg-1, quality is still better than VHS but less than DVD, and more playing time per CD.
You can use ezcd 5 to make these VCD's too but I never use ezcd so I can't help you there.
If you use nero then burn it VCD mode, then you can go right on and play it in your DVD player that supports VCD's