a good model to my mind would be to offer fairly low res, possibly mono versions available via download for free (come on, nothing is "free". you "pay" by being subjected to ads, promos, pop-ups and in these times any info garnered about you and your buying habits is kaching sounds to online marketers or scam artists). and then meanwhile high res stereo versions would be sold at going rates. so the "free" version would be a loss leader to get people to buy the pay version, or maybe a whole LP/CD's worth, with the added advantage that you sell space on your website (or service you are using) to raise revenues even while giving away "product".
semi-off topic rant:
these days (major) record companies have it so good its laughable. who could have imagined they would ever be able to get away with no packaging, no distribution, no production of anything really *tangible* , they just put it up on iTunes and the money rolls in. this is of course ignoring the problem of getting attention paid to your releases but that really is how it was during the prior times anyhow: lots of music released but little of it recognized without major push (read: $) from the label. at this point they are still producing some physical product but I think that will go away in the future, or become strictly a collectors market. the record companies couldn't have achieved a better scenario if they had tried (and I am sure they and their lawyers tried hard, all the while complaining about how those awful "bootleggers" were making them all go broke). and all this is protected by strict anti-piracy laws that while they don't work or get used all the time, they do often enough, and with devastating results on those caught with a trunk full of boot dvd and cds, to keep the illegitimate market from completely exploding like it has in some countries.
the other thing I do not get, though I could be wrong about this since I don't personally subscribe to iTunes or any online music services, is how in the heck the record labels get away with charging what they do for essentially nothing but a bitstream. isn't 99 cents the standard cost for one song? that means a cds worth of material, say 15 3-4 minute tracks are going to cost 15$. that seems like an awful lot to me for something that has no packaging, hasn't been physically moved around, and required no physical space to sell in. CDs were going for about that in USA and typically they would have > 60 mins of music, at 3 minutes a track that would make equivalent of 20 songs = 20$. do people REALLY pay that sort of money for the pap we hear coming out of those dumb cars and every cell phone these days?
edit to add:
ps: getting involved on the money or business side of reggae music (or probably any genre of music) is one sure way to make you (or me at least) pretty much get real tired of the bullsiht real fast and really kinda ruin it altogether as far as enjoyment goes. that has been my experience anyhow and I have to try real hard not to let it affect me too much. I don't mean worrying about losing money personally, I just mean the whole business side of things can be pretty disheartening sometimes and can really reveal another side to people very quickly.