On Sun, 18 Dec 2011, Holm Tiffe wrote:
  There are other companies where I don't have good
experiences, Roederstein
 from Western Germany for Example, I had many many bad caps from them in the 
Also known as ERO, short form for Ernst Roederstein.
Then there is Frako, Frankfurter Kondensatorenfabrik.
And WIMA (I think it's the short form of WIlhelm WesterMAnn)
Other brands like Hydra-Werk, Siemens or Bosch either don't exist or
don't produce "ordinary" capacitors any more.
All of them still manufacture capacitors.
  I don't have such bad experiences with Frolyts, I
still have some from
 before the fall of the iron curtain and I still use them for repair old
 devices (after checking the ESR). 
And I buy them new to repair SMPS (PC and other ones). Buerklin has a
rather good sortiment of Frolyts.
Christian