Complex sentence: Between 1998 and 2001 they released three albums on the Virgin label, Unrein in 1998, which would become their debut album on the Media Control Charts peaking at No.37 and the Austrian top 40 at No.38.
Split into simpler sentences: Between 1998 and 2001, they released three albums on the Virgin label. The first, "Unrein", was released in 1998, which became their debut album in the Media Control Charts, peaking at No.37, and the Austrian top 40 at No.38.