I don't think Roses and Wine(This lets you replace music with soundtrack music (Which is better than the PSX one)) works with this yet. You can choose PSX Music, Or orchestral tracks done by various versions if you choose and even comes with a configurator.
as of now this isn't the best version. The dry PC version still is. However, that version is more expensive or you have to use other methods :P. This game however, doesn't have a whole lot of mods like FF7 does on PC. So the steam version is quick and easy, and has a higher 4:3 resolution, with cloud saves, and achievements if thats you thing.
In FF8 they don't have ways to replace the crappy textures with better ones yet or possibly ever, or lower poly models with better ones like FF7 PC does. There's a difficulty mod though, As well as a font mod for higher resolution fonts, because they are in a different format than other textures.
I haven't bought this yet so I can't say if they work with this version.







