A blogger suspected of streaming songs from the unreleased Guns N’ Roses album “Chinese Democracy” on his Web site was arrested Wednesday and appeared in court, where his bail was set at $10,000.

FBI agents arrested 27-year-old Kevin Cogill on Wednesday morning on suspicion of violating federal copyright laws. Cogill appeared in court in the afternoon wearing a T-shirt; his girlfriend sat court and afterward said, “Rally the troops,” but declined further comment.

Federal authorities say Cogill posted nine unreleased Guns N’ Roses songs on his Web site in June. The songs were later removed.

In later posts, Cogill wrote that the FBI had questioned him and asked his readers if any of them knew a good attorney. He was represented Wednesday by a federal public defender.

According to an arrest affidavit, Cogill admitted to agents that he posted the songs on his Web site. Prosecutors said Wednesday the leak could result in a “significant” financial loss for the band.