[Cin] DAR, PAR and SAR, again

[Andrea paz]

Thanks for the script, but I don't quite understand how to use it!
If you are not in a hurry I am waiting to prepare a small video to put
privately in the Youtube channel (reachable only from the link in the
guide). I hope that with the video everything will be clearer than my
confusing explanations.

PS: can you check the language? It doesn't seem to translate well.