Ah yea, The Player, seen it around here and there.
If I'm correct, you first convert a mod to The Player's own format, which will be more compact and more efficient when playing.
I should add it to the archive I suppose, and perhaps also try it for myself.
It seems The Player does not support ProTracker effects 100%, but should be good enough for most cases. And for the rest, there's always the real ProTracker routine.
Yep, the player compresses the samples and the mod to it's own format. Didn't notice drastic decrease in quality, but in size it's obvious. You can use the extra space for other neat things.