Recording Desktop Without Compression Using X Events?

[Michael B Allen]

I would like to create instructional videos of my desktop (mostly typing
into XTerms but occasionally showing a browser).

However, the videos I have seen are not acceptable quality. It seems
most X desktop recording tools simply record a collection of images or
convert to a video stream that results in a variety of compression and
scaling aberrations.

I would like to know if there is a desktop recording tool that records
X events and then generates video that considers this information such
that compression is not necessary (or rather the X events *are* the
compression).

Does such a tool exist?

Mike