Yes there is a difference between Record and Super Record...they look totally different. Record is brand new stuff. If you mean Nuovo Record and Super Record...the only difference is the date code on the crank arms. Otherwise, the chainrings are the only cosmetic difference that differentiate the two.
All this is of course simply a way for people to describe what era a crankset was built. In actuality however Campagnolo themselves never differentiated between the cranks and simply called them "Record". So it can be a bit confusing.. but the generally accepted practice is calling the cranks either NR or SR based on when they were built. It all comes down to if you want to be technical or descriptive.
NR cranks either have no datecode or a datecode that reflects 1973 to about 1980. They must also have the older-style NR oval-cutout chainrings. SR cranks go from about '80 to '84 and have the SR arched chainrings.