Direct Drive vs. Idler Drive vs. Belt drive


I'd like to know your thoughts on the strengths and weaknesses of each drive system. I can see that direct drive is more in vogue over the last few years but is it superior to the other drive systems? I've had first-hand experiences with two out of the three drive systems but looking to learn more.
scar972
My Gosh I though that propaganda was invented in Germany
(Goebbells) and Sovjet Union (Molotov?).
But my grandad always blamed British for every bad things. 
He looked than in special way at the listener. I was sceptical
because I was able to read ...That is probably the needed
capability for propaganda. 

edgewear, Your accusation than I am Dutch is curious because
I am an (brave) Serbian. But you are right regarding CD invention.
As you should know I am member of analog religion.
Nandric, the 'accusion' as you like to call it was aimed at Philips for their preposterous CD propoganda. Last time I checked this is a Dutch company...... 

edgewear, While I am an (born) brave Serbian I don't believe
that all Dutch people are to blame because Philips is an Dutch
company. What about Linn then? Do you agree with my grandpa?