I have arranged these chronologically.
First, two seminal recordings by the US Marine Band. I believe it was re-recorded after only 2 ½ years because the earlier recording was done at about 73-74 rpm. The later performance is a bit tighter, too.
US Marine Band (Victor 4911 (V-3887-2); 10/15/06)
US Marine Band (Victor 16792 (B-3887-3); 2/18/09)
Herb Wiedoeft’s Cinderella Roof Orchestra (Br 2795; 10/21/24)
This next, a territory band recording (on location in New Orleans) I believe was also recorded at about 73 rpm!
The Halfway House Dance Orchestra (Columbia 476-D; 9/25/25)
Moving ahead to the swing era now...
Earl Hines and His Orchestra (Decca 218; Chicago, 9/12/34)
Tommy Dorsey and His Orchestra (Vic 25496-B; NY, 10/18/36)
Now a couple from a much later time, after the Ragtime Revival began...
New England Conservatory Ragtime Ensemble/ Gunther Schuller, cond. (recorded in concert, ca. 5/80)
The next I am bashful to include

Me
And a recent youtube video I made of my friend Bryan Wright. Here is his written intro:
My arrangement of Scott Joplin's "Maple Leaf Rag." Recorded in Chicago, IL, March 13, 2009 (at 8:30 AM--hence the groggy look in my face!). Thanks to my friend Adam Dubin for the use of his piano and for taping this.
[youtube]http://www.youtube.com/watch?v=RdRYYaaS1Rg[/youtube]