Paganini String Quartets

Only very recently did I discover that Paganini wrote string quartets. Well, they are not so much string quartets as 4-movement works for solo violin, with string trio accompaniment (second violin, viola and cello). Excellent, undemanding listening after a good lunch. Classical entertainment music at its best. My ultra-cheap recording (Brilliant Classics) is seemingly well played by the Amati Ensemble String Quartet, and is well recorded. There are three quartets on the CD (are there more around?) and I cannot recall ever seeing any of them programmed in a concert. Shame. Despite the 'Paganini' label, there does not seem to be anything in the instrumental writing beyond the technical powers of a good amateur string quartet.