One problem with audiobooks is the dialogue. Very often an author does not supply the "he said/she said" before or after each quotation and the listener is often at a loss as to who is speaking. David Suchet, the ultimate Poirot, gets around this by using a different voice for each character. He had accomplished this in his reading of the complete "Death on the Nile" for Audio Partners and he does it again with a superlative <Murder on the Orient Express> for that same label.
This set was designed for a release to coincide with the CBS dramatization of the classic whodunit, but Audio Partners need not have bothered. That telecast was an utter disaster with a lusterless Poirot, a cast that for the most part could scarcely create a character, and an updating of the decor (among other ludicrous changes) to the present. So the older film with its starry cast can rest unchallenged; but the public is entitled to enjoy the original and this audiobook is just the ticket.
Christie uses the usual "closed environment" setting (an island, a cruiser, a train) to give us a small number of suspects; and then she hits us with Poirot's "gather everyone together while I explain the solution" scene. One of the gimmicks of this novel is that Poirot comes up with two solutions! But for the sake of those very few who do not know the ending, I will say no more. And even for those who do, there is always the joy of Suchet's reading.
I have the CD edition, a format that makes it difficult to find where you last left off since each full chapter is usually given a single track number. Here Audio Partners has thoughtfully broken each chapter into several tracks so you pretty much can get back to where you were with a minimum of trouble. Tapes, of course, stay where they are--and are much better for use in autos.
So by all means choose this as your next purchase, and do not forget the "Death on the Nile" offering while you are about it.