"The Wounded" HD coverage at Ex Astris Scientia is here: http://www.ex-astris-scientia.org/observations/thewounded.htm
The high-def version of "The Wounded" now features weapons energy readings and shield effectiveness percentages, as well as a frequency attached to the rapid nadion effect.
Specifically, it seems the Cardassian warship that was destroyed fired a 700 MW coherent disruptor beam with a rapid nadion effect of 340 kHz. Another image shows that the Phoenix is then seen to be hit with an estimated impact of 120 MW and a secondary impact (huh?) of 82 or 92 MW.
Another hit against shields shows a shield effectiveness percentage of 62% with a separate weapon penetration figure of 37% shown.
The megawattage numbers are consistent with the TNG Tech Manual and suggest that the beam weapons of a Cardassian ship are on the order of 75% as powerful as a shot from one of the larger arrays on the Galaxy Class, at least in the TNG-TM-iverse.
However, almost everyone agrees that you can't take the TNG TM values at face value, because they just don't fit. For instance, the TNG TM suggests hand phasers are limited to ten kilowatts, and yet we see them perform tasks requiring dozens of megajoules of effective yield. Moreover, in "The Mind's Eye"[TNG5], a phaser rifle is tested and, per Data, "energy cell usage remains constant at
1.05 megajoules per second."
Either phasers operate in the megajoule range at least, or else phaser rifles are suddenly 100 times more powerful than hand phasers . . . a rather unique concept which has never been indicated before. And, of course, at TNG TM levels, this would put phaser rifles at 20% the power of a phaser emitter segment. Even at 200 segments, at that point, you might as well just strap 1000 phaser rifles to the hull. It'd probably take less room.
Similarly, if photon torpedoes were as powerful as the midrange claim of 64 megatons in the TNG TM and if shipboard phasers were, too, then even assuming it took a full second for a photon torpedo to release its energy, they would still be hundreds of millions of times more powerful than phasers . . . or, in other words, assuming a gigawatt discharge from the large saucer phaser array, it would take a sustained shot lasting about 8.5 years for the phasers to match the energy of the photon torpedo.
Obviously, this is not what we saw in the show.
Of course, as noted by Mike DiCenso, the TNG TM gives figures ranging from 4.8 kilotons to 2.39 gigatons for photon torpedoes, depending on where you look. Assuming a one-second detonation and energy release (which is, again, awfully slow), that puts torpedoes between 20,000 gigawatts and 9,999,760,000 gigawatts. Using the "sustained phaser shot to match" standard, that's somewhere between 5.5 hours and 317 years . . . neither one of those figures matches the canon, either.
The point here is that I view the megawattage numbers as pretty useless. As noted by Mike Okuda, though, we need not feel beholden to the new material, which is a blessing in this case. Otherwise we'd be in Contradiction City, and I hate that place.
As for the other details, I'm not sure what to do with them. The notion of shields allowing 1/3rd bleedthrough damage is certainly disconcerting . . . this would imply that a Tech Manual torpedo (where one figure gives 64 megatons) would involve over 21 megatons of energy striking the ship . . . 33 megatons using "Rise" figures, or up to 800 megatons using the highest TNG TM torpedo value. That seems awfully messy, too.
I'm thinking at the moment that it's best to just pass on the new version of the scene altogether.