Nero 7 lite and Micro

Newbie but...
it appears one or the other of these trimmed down versions would be ideal for me. Perhaps a little more involved on the frontend but I think I can do it. The Nero 6 Express OEM I got with my BenQ1655 doesn't have some of the detailed capabilites of the full Burning ROM product that I seem to need for a couple projects.
NOTE - I really just want to copy/burn/store data and maybe read books onto CDs for my elderly parents. I am not working with music or movies on my computer.
So - how does this Lite/Micro option work?

1) It appears this is an install package somehow sanctioned/OK'd by Ahead/Nero that allows you to tailor to a greater extent what you load onto your computer.

2) I gather I must purchase Nero product. If so...
a. Which of 10 million various Nero products? I suspect it must it be maximum/full Ultra premium version?

b. Is it better to buy as retail then use serial #; buy online use serial #; or buy at time of Lite/micro download from Nero link?

c. If I do buy a retail disc, I expect I would either never load it and just use the serial #. Or if i did load it, uninstall it then download through Lite/micro site?

3) If I buy from any of above sources will I be able to add/delete other bloat components later as I wish?

EXTRA Q's:

4) In my travels I have seen many references/applications for InCD, but I saw on this site a warning that this application is evil?

5) Nero Back it up sounds interesting. Has it not been looked at or discussed because it seems like a tack-on afterthought? Has it been voted down elsewhere and I just missed it? Or is it just that there are many other and better Free back utilities?

Thanks!

If you briefly summarize your question the forum members would have easier time to suggest any alternatives.