If you don't see Solid Burn options in QSuite, then you need to upgrade your 1640 firmware. Solid Burn is supported on 1640 with firmware BSKB or newer.
I would guess the problem with Princo is not because of SolidBurn but it's the media itself. Try another media, a good one this time (TY or Verbatim). If you cannot find TY or Verbatim in your area or they are too expensive, give us a list of media you can find and I'm sure our knowledgable members could give you advise which ones are better.