Hi Paul,
Check Randolph's web page for distributors. You'll see that Brodak is a distributor for Randolph's It is the same dope, however Brodak has made more colors than can be obtained from Randolph, in fact, quite a few and has made it all available in smaller quantities. Randolph's smallest quantity is a quart.
Ya pays yer money and makes yer choices!
Not a problem with either "Brand".
Bob