All film is processed to exact manufacturer's recommendations. Continuous quality control checks are maintained on all processes. Sheet film and short rolls are processed on dip and dunk type film machines eliminating any contact with rollers or guides.
All film is sleeved in archival quality material for protection.
They are Kodak terms for the chemical process used to develop a particular film type. You can look at your film canister to see what process your film requires. An interneg is a fancy name for a negative made from a slide or transparency. They are both the same film, just different sizes. Custom prints are not available from 35mm internegatives.