IA/00 is IA's first compilation album released by 1st Place in collaboration with Queens Label. The album contains two discs, first of which is composed of tracks sung by IA only and the second one features two songs performed by IA's voice provider, Lia, and accompanying instrumentals. The songs featured on IA's side of the album are, for the most part, IA's demo songs.
This album was released at Comiket 81.
A crossfade of the album can be heard on YouTube.
- Disc 1: #1-12
- Disc 2: #13-16