I use Modplug for my tracking projects. However, I would always use IT and XM formats, because 3 problems arise when using Modplug to create MODs (though one of the problems isn't Modplug-specific.)
First-off, I notice the samples are all distorted and stretched out, playing back veeeeery slowly when previewed and/or played in the channels. Yet when I change the pitch up to a listenable level so I can actually USE the tracker, when I play back the MOD in another player, it sounds all off-key and high-pitched.
The second problem is more straightforward, I think, and arises with S3M files as well. When playing back the song/samples it plays only through one stereo channel, all lopsided and imbalanced.
Finally, here's the non-Modplug specific question. When browsing my collection of old MODs using Modplug, I noticed the average size for most of these MODs was VERY small, generally 90 to 98 kilobytes, with the 8-bit WAV samples being anywhere from 3 to 12 kb on average. And yet they sound perfect, hardly fuzzy or distorted at all. How on earth do I get similar results?
Help is strongly appreciated.