This is a set of high quality/remastered RO BGM tracks as well as the original login screen theme, they're 320 kbps 44.1 kHz.
As far as I know, there are no better versions of the following tracks:
- 133 - Sunny Side of Life - Denis Koishi
- 134 - Borborema - Denis Koishi
- 134 - At Dusk - Denis Koishi
- 161 - Forest of Despair - Moonstruck
- 162 - Dark Light - Moonstruck
- 163 - Lost Souls - Moonstruck
- 164 - From the Grave - Moonstruck
So I included the original ones.
I've tested this and everything seems to be fine, but if you find any issues, such as misnumbered track, make me know.
Simply override your BGM folder, and make a backup just in case.