Here is some info I found over on Digital Bits, enjoy:
Rough Riders Triple Feature #1 (1941)
Rough Riders Triple Feature #2 (1942)
Rough Riders Triple Feature #3 (1942)
(released on DVD by Falcon Picture Group for Critics Choice Video on November 9th, 2004)
Cowboy trios were a popular component of the B westerns of the 1930s and 1940s. Republic's The Three Mesquiteers (initially Bob Livingston, Ray Corrigan, and Max Terhune) are probably the most well-known because of Republic's high B-western production values and the series longevity (51 films from 1936 to 1943). One of Republic's competitors - Monogram Pictures - thought so much of the idea that it had three such trios - The Range Busters, The Trail Blazers, and The Rough Riders. Of these, The Range Busters were the most long-lived (24 films from 1940 to 1943), but the best in my opinion were The Rough Riders. Three veteran B western stars - Buck Jones, Tim McCoy, and Raymond Hatton - played the leads and gave some real class to the films they made. All were 50 years of age or older, and appeared to really enjoy working with each other in the eight films they made together in 1941 and 1942. Jones, McCoy, and Hatton each played retired U.S. marshals who are summoned out of retirement at the beginning of each film to look after some injustice. At the end, each returns to his place of retirement (Jones to Arizona, McCoy to Wyoming, and Hatton to Texas) to the cry of "Goodbye Rough Riders". Due to the stars' ages, the action was sometimes rather perfunctorily handled, but the scripts were generally good and Monogram did its best to provide decent production values. After the U.S. entered World War II, Tim McCoy joined the service and without him, Buck Jones and Raymond Hatton did one more film playing their Rough Riders characters, but it (Dawn on the Great Divide) was not advertised as a Rough Riders film. It was Buck Jones' final screen appearance as he lost his life as a result of the Cocoanut Grove fire in Boston in November 1942.
All eight Rough Rider films (Arizona Bound [1941], Gunman from Bodie [1941], Forbidden Trails [1941], Below the Border [1942], Ghost Town Law [1942], Riders of the West [1942], Down Texas Way [1942] and West of the Law [1942]), plus Dawn on the Great Divide, have been gathered together on three discs by Falcon Picture Group for release by Critics Choice as part of its Classic Movie Collection. Of the nine titles, all are quite watchable if fairly formulaic of the B western genre. The most interesting are Gunman from Bodie and Ghost Town Law due to somewhat more contrived plots than usual. Present in virtually all of them are the extremely harmonious Rough Riders theme song ("The Rough Riders ride, take care. The Rough Riders ride, beware …"), the novel ways in which each of the three principals gets introduced into each plot, and a fine cast of B western character players featuring the likes of Charles King, Glenn Strange, Roy Barcroft, Tris Coffin, Harry Woods, Bud Osborne, etc. If you're already familiar with The Rough Riders films, you know the pleasure you're in for as far as the films go. If you haven't seen the Rough Riders before, look forward to films that are for the most part entertaining timepassers indeed.
Unfortunately, Falcon's presentation of the films on DVD leaves much to be desired. All are presented correctly full frame, but image quality is fair to poor. The transfers are a riot of scratches, speckles, dirt, and debris and look quite soft with poor contrast and poor shadow detail. Disc #1 is the least bad of the three with all three films looking better than the VHS copies with which I was able to compare them. Disc #2 is the worst. Unfortunately Ghost Town Law is on that disc and it's barely watchable. Riders of the West is out of focus and watchable only if you're prepared to put up with a headache afterwards. Disc #3 is modestly better than #2 so that at least Buck Jones's last film is watchable. The mono sound on all discs is in very rough shape with continuous hiss and crackle plus occasional motorboating. Most of the films seem complete although all their running times vary from those listed on the containers by at least a minute or two. The exceptions are Arizona Bound which is a shortened version of 49 minutes instead of the proper 58-minute length, and Dawn on the Great Divide which is its proper 70-minute length instead of the 62 minutes listed on the box. There are no supplements other than an unlisted trailer that precedes Forbidden Trails on disc #1. The trailer is for Silent Valley, a 1935 Reliable Pictures B western starring Tom Tyler.