[OLD REGGIE]

The Douay-Rheims Catholic Bible says "penence," as does the Old Vulgate (pœnitentiam), but the New Jerusalem and the New Revised Standard Veriosn say "repentance."

Since the D-R is a 16th century English translation of the Old Vulgate, the error was in the Vulgate and it wouldn't be the first one. Numeorus errors form the Vulgate were incorporated into the Textus Receptus and from there into the KJV and other Protestant Bibles.

A significant number of (Roman) Catholics believe any "Catholic" Bible written since the Douay Rheims is the work of the Devil.

[Kolokotronis]

"A significant number of (Roman) Catholics believe any "Catholic" Bible written since the Douay Rheims is the work of the Devil."

Well that's odd, but there are all sorts of odd religious ideas floating around these days.

[annalex]

any "Catholic" Bible written since the Douay Rheims is the work of the Devil

Not "any", but the so called "dynamic" translations certainly are. Douay is word-for-word Vulgate and Vulgate is the result of Jerome's work before some codices went missing, and in the living environment of 4c Palestine. There are problems with that as well, but on balance, there is no better window to the Greek original in English today than Douay. unless you are prepared to struggle with Young's Literal, or, best of all, learn Greek.

That is if you want to do, in the spirit of Protestantism, all the work for yourself from scratch. If, on the other hand, you are willing to accept a historical authority, listen to the Catholic (and/or Orthodox) Church and you will know exactly not only what the scripture says but also what it means. Then the blandest, most cursory and aerodynamic stuff like NAB would still become useful, because you read it with the eye of the Church.