CCD module variants

[Gene]

The 41CL flash library contains a multitude of CCD modules variants.

1) What's the real differences between these?
2) In the smaller V2 flash image, are all of these really needed? They take up a good bit of space in that earlier flash ram that means some newer stuff won't fit, for example, there is no room for the CCD Example rom that is forthcoming.

Here's what I see in the 41CL flash. What's the differences?

1) CCDR - CCD module 1B (two pages)
2) CCDX - CCD OSX ROM (one page - CCD os extensions?)
3) CCDA - CCD Advanced rom (one page)
4) CCDP - CCD Plus rom (two pages)

What do these do for us? That's six flash pages for these.