I'm not saying to stay away from MS...
The "Anti-Microsoft" part wasn't directed at you
I was loathe to mention it because it can unfairly place people with genuine arguments into the same box as people who don't know anything about the differences but go with a gut feeling of anti-Microsoft sentiment.
I didn't mean to use it to belittle your position on the matter. I'm sorry if it seemed that it was directed at you.
I'm saying the Express edition has some limitations that are unnecessary and can limit performance when there is an alternative that doesn't not have such limits. If you are running dual or quad cores, why not let the database take advantage of that?
That may be true for large-scale database users, but in regards to MediaPortal, the whole database debate is a waste of time...
MediaPortal is not a "big" database user. MS SQL and MySQL are both more than up to the job and the differences between the two are utterly negligible in this context.
In the future (Read: MediaPortal 2) we will not be dividing our efforts by supporting multiple databases, in fact we'll be avoiding this issue completely. I'm not sure if I should say any more than that at this stage, I don't want to make statements about it without team approval, suffice to say that MS SQL versus MySQL will not be relevant ... eventually.
Cheers,