[sdiy] Mundorf capacitors - how much snake oil do they contain?

[Dave Kendall]

Hi all.

They do seem excessively pricey to say the least (*cough*)....... 
Anyone here know of any technical documents on whether there is any 
noticeable/measurable difference using them in synth or audio circuits 
instead of regular, reasonable quality caps?
R.G Keen has a great article on the Geofex site on carbon comp 
resistors;
http://www.geofex.com/article_folders/carbon_comp/carboncomp.htm

Anyone know of anything comparable on capacitors?

cheers,
Dave