DodoGeo: I would be cool to fix Heroes 2, the broken sound for Dimension Door or Town Portal.
I've heard that sound, it is atrocious! You can fix that by replacing the Dosbox version that is included with the game with a newer one. One thing I hope they get around to is getting a better rip of the CD audio in HoMM 2. I'm not totally sure about this (as I still use the CD version) but as far as I can remember the quality of the MP3's used was low (112 or 128kbps) and there were some pops and cracks like what you get from a bad CD rip. The HoMM 2 soundtrack is a good contender for the number 1 spot for video game soundtracks so a more dignified treatment would be nice. Even better would be if they also included the soundtrack for the Prize of Loyalty expansion disc. The latter is a very popular demand. And you know, the GOG crew is just that kind of nice people that it wouldn't surprise me if they did that :-)
And now over to the opposite situation. HoMM 3 has really nice music too, although with a very different approach to Classical music. Compared to that of HoMM 2 it is closer to later types of Classical like Debussy and Holst as well as the Film music composers they influenced. The mp3 files that comes with HoMM 3 are just 128 kbs but they are in stereo and a sample rate of 44100. For some unknown reason however, in-game, they are played in mono at a sample rate of 22050. The difference is easy to hear, just try to play one of the mp3 files with your music player.
Why the game was released this way I don't know. If it was an error you would think it would have been discovered and fixed later in a patch.
Recently I came across this thread were somebody apparently has just changed a few parameters in a dll file and now HoMM3 can play it's music in stereo:
http://www.celestialheavens.com/forums//viewtopic.php?t=8031&start=0&postdays=0&postorder=asc&highlight=
Be warned however that although the fix worked as it was supposed to, my outdated Antivirus program picked up nothing, and I noticed nothing fishy with my computer after I installed it, it could potentially be infected with some unknown trojan. The fix seems to not very well known in the HoMM3 community, so the potential for some hidden payload is greater than with a well used fix. In the thread there actually was mentioned a couple of warnings from anti-virus programs. Whether that was just false positives or something else remains unknown but since the fix is over two years old there has at least been some time for someone to discover bad code. This mp3 fix has supposedly also been incorporated into the HD mod, so if you have a recent version of it you also have this.