This is the one I had in mind, though both are excellent:
http://traditionalcatholicsermons.org/BishopSanbornSermonArchive/BpSan_Predestination_02-12-95_1277.mp3
Very good, indeed. The most important aspects explained lucidly and succinctly, using good examples.
At the beginning there is an error, but it's effectively corrected later on:
[...] Catholic Dogma of predestination [...] while God desires the salvation of all men, and gives all men the sufficient grace to save their souls so that everyone has a chance, nevertheless by a resolved decision, he orders some people to everlasting glory [...] while others he permits to fall down through their own fault
True is:
God gives the sufficient grace to save their souls to all just (not to all men). Correction:
[God predestines some] by willing for them the necessary graces to accomplish that end.