Asalamaoalikom wa rahmatullahi wa barakaatuh,
This is good. Jazakallah khair for your contributions.
Can you tell me what's MSA and ECA?
Asalamaoalikom wa rahmatullahi wa barakaatuh
Thanks and allow me to answer your question
MSA - Modern Standard Arabic
which means the language in which we read and write. That is to say the formal language of newspapers, books and some programs, the BBC news, etc.
ECA - Egyptian Colloquial Arabic
the language in which we speak in Egypt. There is a big difference between the two and very small similarity.