Andre Previn and Kyung-Wha Chung have that special magic which sparkles in the Tchaikovsky and notably the fabulous Chung performance of the Sibelius. There are so many versions of these to choose from nowadays, and I have many of them, but I keep coming back to this performance of both concerti. An excellent analogue recording from the mid-70s superbly remastered. The Mendelssohn is fine, and if only the set included the later Chung version of the Beethoven it would be a 5 gold stars set.
Of course, the Sibelius and Tchaikovsy are available on one CD released separately, if you wish to fork out more for separates....I preferred to buy this set at the time, which is one of my more frequently visited recordings, and then get the later Chung Beethoven recording coupled with the Bruch. Now there's the thing, you get to compare the early Chung with her later maturity in the great late Ludwig's masterpiece, along with outstanding concerti played with accuracy, character, and purity of tone and interpretation. Chung has all the style and character in such demand after the middle 20th century post-Heifetz, plus all the purity and accuracy expected at the end of the century. Enjoy.