Is it true that you use Et as for things and so on and En for persons?
No, there is no rule for using "en" or "et" You will have to Learn it.
How to pronounce Måltid?
You can check it here: http://www.ivona.com/ OR http://ordnet.dk/ddo/ordbog?query=m%C3%A5ltid=S%C3%B8g
Whats the diverence between maltid and med?
Is there a good general rule for using en or using et?
no sorry its like french you just need to learn it
I don't think so. As I asked from my Dansk friends.
To me, it sounds like "måltid" is pronounced like /moi.͡tsɪð/. Can someone give a better IPA for this?