Complex sentence: They were also available by subscription; as just the regular CDs, or with a custom-made bamboo box with an acrylic-on-bamboo painting by Masami Akita himself.
Split into simpler sentences: They were also available by subscription; as just the CDs, or with a custom-made bamboo box. Also available only with the box was an acrylic-on-bamboo painting by Masami Akita himself.