Thanks all. I checked at arkivmusic.com and found that Rostropovich has had several recordings.
The Giulini with the LPO (number 1) comes recommended.
I don't own, nor do I intend to buy an SACD player, but thanks for mentioning it.
1. Dvorák, Saint-saëns: Cello Concertos / Rostropovich, Giulini
Release Date: 09/11/2001 Label: Emi Great Recordings Of The Century Catalog: 67594
Composer: Camille Saint-Saëns, Antonín Dvorák
Performer: Mstislav Rostropovich
Conductor: Carlo Maria Giulini
Orchestra/Ensemble: London Philharmonic Orchestra
2. Dvorak: Cello Concerto, Piano Concerto / Rostropovich
Release Date: 09/22/1994 Label: Supraphon Catalog: 111901
Composer: Antonín Dvorák
Performer: Mstislav Rostropovich, Frantisek Maxian
Conductor: Vaclav Talich
Orchestra/Ensemble: Czech Philharmonic Orchestra
3. Dvorák: Cello Concerto; Tchaikowsky / Rostropovich, Karajan
Release Date: 01/23/1996 Label: Dg The Originals Catalog: 447413
Composer: Peter Ilyich Tchaikovsky, Antonín Dvorák
Performer: Mstislav Rostropovich
Conductor: Herbert von Karajan
Orchestra/Ensemble: Berlin Philharmonic Orchestra
4. Dvorak: Cello Concerto; Strauss: Don Quixote / Rostropovich
Release Date: 06/14/2004 Label: Yedang Entertainment Catalog: 10015
Composer: Antonín Dvorák, Richard Strauss
Performer: Mstislav Rostropovich, Dimitri Shebalin
Conductor: Boris Khaikin, Kiril Kondrashin
Orchestra/Ensemble: USSR State Radio Symphony Orchestra, Moscow Philharmonic Orchestra
CD $8.99
5. Dvorak: Symphony No 9, Etc / Talich, Rostropovich, Czech Po
Release Date: 02/25/2003 Label: Archipel Catalog: 99
Composer: Antonín Dvorák
Performer: Mstislav Rostropovich
Conductor: Vaclav Talich
Orchestra/Ensemble: Czech Philharmonic Orchestra
CD $11.99
6. Mstislav Rostropovich - Dvorák, Saint-saëns: Cello Concertos
Release Date: 04/10/1997 Label: Testament Catalog: 1101
Composer: Sergei Rachmaninov, Alexander Scriabin, Claude Debussy, David Popper, Camille Saint-Saëns,
Antonín Dvorák
Performer: Mstislav Rostropovich, Alexander Dedyukhin
Conductor: Sir Malcolm Sargent, Sir Adrian Boult
Orchestra/Ensemble: Philharmonia Orchestra, Royal Philharmonic Orchestra