I, too, am very happy about these two games being on GOG now; by the way, why does Judgement Rites have its own separate forum? shouldn't both of these adventures be together in one for constituting a series?
Anyway, I'd never have expected to see these games on the market ever again, given how tight Paramount's grip on the license is. Remember a game called Bridge Commander? To my knowledge, only 3000 items of that one were sold, because Totally Games (yeah, the X-Wing/TIE-Fighter devs) or Activision disgruntled Paramount somehow and got the Star Trek license revoked, which disallowed them from selling any further copies. If GOG could somehow get their hands on Bridge Commander, too... It has some really, really awesome mods!
So, back to these adventures. They are some of the very few games that really capture the feel of the series and understand the franchise; Spectrum Holobyte's A Final Unity does the same for the Next Generation - get on it, GOG! ;)
However, these games may be another one of those cases where offering both versions of the game (as happened with the X-Wing/TIE-Fighter collector's editions) might be in order, because other than the added end-game sequences of the talkie version of 25th Anniversary, there's another notable difference between the floppy and talkie versions of both games: The ship's computer has a lot more entries in the floppy versions, because either CD-ROM space ran out due to all the audio data, or it was too expensive to put all its content into the re-release.
Those many more entries in the ship's computer are cool insofar as you can look up a lot of stuff that occured in the series and doesn't play any role whatsoever in the games! Also, the final battle was patched to be more doable in the talkie version - the floppy version's final battle is infamous for its difficulty. Would be nice if that one was still available for posterity's sake.
Needless to say, I did beat that final battle in the floppy version back in the day. On the 23rd try, if I remember correctly. :D #bragrights