Looking for great violin CDs in solo.

Yo Yo plays the cello. He should be very easy to get recommendations for. He's done some innovative collaborations over the years. The one that comes to mind is Appalachian Journey which I've only heard a few cuts from.

If you start to get into the concertos, for some remarkable performances check out the older mono recordings of Leonid Kogan on the Testament label. I especially like his Tchaikovsky Concerto.

Bach: The Sonatas And Partitas For Violin Solo / John Holloway

hilary hahn for bach violin..you can't go wrong picking up any hahn violin cd.

if you are going to open this up to more than just solo violin, your universe just exploded! Now you are talking the whole world of string quartets, piano trios, cello sonatas, etc. Here are some good choices featuring excellent performances of great music recorded well:

Schiff and Pereyi-Beethoven Cello sonatas on ECM
Floristan Trio-Beethoven Piano trios on Hyperion
Kashkashian and Levin - Brahms Viola sonatas on ECM
Takacs Quartet- Beethoven Quartets on Decca
Takacs Quartet- Schubert Death and the Maiden on Hyperion

An enthusiastic second to Jburidan's recommendation of the Biber Mystery Sonatas: absolutely magical stuff.