| Track No. | Track Title | Version | Composer | Album | Album ID | |
|---|---|---|---|---|---|---|
| 8 | WHAT'S THE PROBLEM | main | Albert Calvo | REALITY TENSION | AD2172 | |
| 45 | WHAT'S THE PROBLEM-us1 | underscore1 | Albert Calvo | REALITY TENSION | AD2172 | |
| 46 | WHAT'S THE PROBLEM-us2 | underscore2 | Albert Calvo | REALITY TENSION | AD2172 | |
| 47 | WHAT'S THE PROBLEM-us3 | underscore3 | Albert Calvo | REALITY TENSION | AD2172 | |
| 48 | WHAT'S THE PROBLEM (30) | 30 | Albert Calvo | REALITY TENSION | AD2172 |