ミニアルバム

noun

small photo album

Refers to a physically small album for holding photographs, as opposed to a music release.

from English mini album

• 旅りょ行こうの写しゃ真しんをミニアルバムにまとめた。

  I put the travel photos into a small photo album.

noun

extended play; EP

In music, a release that is longer than a single but shorter than a full album; commonly called an EP in English.

• そのバンドは新あたらしいミニアルバムをリリースした。

  The band released a new EP.