You downloaded a "full fixed" pack, but you still have stuttering. Here is why:
Finding these song packs is an adventure in itself. The original O2Jam and O2Mania official websites are long gone, so you'll be relying on fan archives and community uploads. Use the resources below as your primary sources. All links were verified functional at the time of writing. o2mania song pack full fixed
| Resource | Format | Notes | Access | | :--- | :--- | :--- | :--- | | | OJM/OJN | 20 packs from the o2jam.intgamerz.net archive. A great source for the original game's songs. | Download via o2jam.intgamerz.net | | 100 Korean O2Jam Songs | RAR/Torrent | A classic torrent containing 100 songs from the Korean version of the game. | Torrent Download (Right-click, Save As) | | Moon (Jupiter) Client Song Packs | OJM/OJN | Sourced from the "Moon Jupiter" private server. Contains songs grouped by difficulty levels 1-50, 35-80, etc. These will require you to copy songs from the "4ever," "Music," or "Songs" folder. | Download OneDrive folder | You downloaded a "full fixed" pack, but you