This double CD set contains two recordings from the French Quatuor Via Nova, one from 1970 (the Chausson and Roussel) and one from 1985 (the Magnard). In that time, the ensemble had turned over with only 1st violinist Jean Mouillere remaining in place. My summary of this set is that the 1970 performances are far better than the 1985, the music is not the composers' best and the harsh recorded sonics are mediocre.
The first disc contains the 1899 Ernest Chausson string quartet and, in a completely different style, the spiky, unconventional Albert Roussel string quartet from 1932. The Quatuor Via Nova delivers solid, accomplished performances here, to their credit as the pieces are technically demanding. (I would recommend the fine Chilingirian Quartet release as a better alternative in the Chausson.). The second disc contains Aalberic Magnard's 1903 string quartet, an ambitious 45-minute work in the author's typical thick late Romantic style. Here, the ensemble falls down, experiencing intonation problems and a general lack of refinement. This was my first hearing of the obscure Magnard work and it is hard to form an impression based on a flawed performance such as this one, but it didn't strike me as the best this composer has achieved.
As I am being critical of the music here, let me recommend some alternatives by these composers:
Chausson - The very beautiful and ambitious Piano Quartet rather than the String Quartet.
Magnard - He wrote a lengthy, very attractive Violin Sonata a few years later that is the best of his work that I have heard.
Roussel - Not chamber music but try his earlier choral work Les Evocations.
I hope this is a helpful review of a very flawed CD set.