| Do the B-side | |
| Type: | compilation |
| Artist: | Do As Infinity |
| Border: | yes |
| Released: | September 23, 2004 |
| Genre: | J-pop |
| Length: | 53:27 |
| Label: | AVEX Trax |
| Producer: | Dai Nagao / Seiji Kameda |
| Prev Title: | Do the Best + DVD |
| Prev Year: | 2004 |
| Year: | 2004 |
| Next Title: | Need Your Love |
| Next Year: | 2005 |
Do the B-side is the eighth album from the popular Japanese band Do As Infinity. A limited edition of this album was released with an original T-shirt celebrating the fifth anniversary of the band. Footage of the concert is found in the Do As Infinity Live Year 2004 DVD. This B-side compilation album was released on September 23, 2004, under the AVEX Records label.
In the Taiwanese version of the limited version of Do The B-Side, the two CDs contained the opposite tracks from each other. This is not the first defect that the Taiwanese branch of Avex has made; other artists have made mistakes with the Taiwanese versions of their products as well.[1]