| Official |
|---|
| 1.7 | I Don't Know | 2:38 | Chick Corea | Circling In | Chick Corea | Album + Compilation | | Blue Note | BN-LA472-H2 |
| 1.11 | I Don't Know | 2:45 | Chick Corea | Now He Sings, Now He Sobs | Chick Corea | Album | | Blue Note | CJ32-5009 |
| 1.11 | I Don't Know | 2:45 | Chick Corea | Now He Sings, Now He Sobs | Chick Corea | Album | | Blue Note | CJ32-5019 |
| 1.11 | I Don't Know | 2:45 | Chick Corea | Now He Sings, Now He Sobs | Chick Corea | Album | | Blue Note | CDP 7 90055 2 |
| 1.11 | I Don't Know | 2:45 | Chick Corea | Now He Sings, Now He Sobs | Chick Corea | Album | | Blue Note | TOCJ-5355 |
| 1.11 | I Don't Know | 2:45 | Chick Corea | Now He Sings, Now He Sobs | Chick Corea | Album | | Blue Note | 0777 7 90055 2 9, CDP 7 90055 2 |
| 1.11 | I Don't Know | 2:45 | Chick Corea | Now He Sings, Now He Sobs | Chick Corea | Album | | Blue Note | CDP 7 90055 2 |
| 1.11 | I Don't Know | 2:45 | Chick Corea | Now He Sings, Now He Sobs | Chick Corea | Album | | Blue Note | 7243 5 21134 2 |
| 1.11 | I Don't Know | 2:45 | Chick Corea | Now He Sings, Now He Sobs | Chick Corea | Album | | Solid State Records | TOCJ-9360 |
| 1.11 | I Don't Know | 2:45 | Chick Corea | Now He Sings, Now He Sobs | Chick Corea | Album | | Blue Note, Capitol Records | 2435382652 |
| 1.8 | I Don't Know | 2:43 | Chick Corea | Now He Sings, Now He Sobs | Chick Corea | Album | | Blue Note | 7243 5 38265 2 9 |
| 1.11 | I Don't Know | 2:45 | Chick Corea | Now He Sings, Now He Sobs | Chick Corea | Album | | Blue Note | 7243 5 38265 2 9 |
| 1.11 | I Don't Know | 2:45 | Chick Corea | Now He Sings, Now He Sobs | Chick Corea | Album | | Polityka , The Music Marketeers | TMMPL009-14 |
| 1.11 | I Don't Know | 2:45 | Chick Corea | Now He Sings, Now He Sobs | Chick Corea | Album | | Blue Note | 00014 |
| 1.7 | I Don’t Know | 2:43 | Chick Corea | Circling In | Chick Corea | Album + Compilation | | Blue Note | UCCU-3208, UCCU-3209 |
| 2.11 | I Don't Know | 2:45 | Chick Corea | Now He Sings, Now He Sobs | Chick Corea | Album | | Esoteric , Solid State Records | ESSB-90308 |
| 1.11 | I Don't Know | 2:45 | Chick Corea | Now He Sings, Now He Sobs | Chick Corea | Album | | Esoteric , Solid State Records | ESSB-90308 |
| 1.8 | I Don’t Know | 2:43 | Chick Corea | Now He Sings, Now He Sobs | Chick Corea | Album | | Blue Note | |