Just an FYI - this is copied from criminaldefenselawyer.com:
More Protective State Laws Not Preempted
But, state laws that afford greater privacy protection to citizens than the Wiretap Act are not preempted by the federal law and their provisions will be enforced.
In twelve states, no person may record a private communication without the consent of every party to that communication. Thus, no surreptitious recording is allowed (with exceptions for law enforcement officials who have obtained warrants to make such recordings). The states with these laws are California, Connecticut, Florida, Illinois, Maryland, Massachusetts, Michigan, Montana, Nevada, New Hampshire, Pennsylvania, and Washington.
Penalties
Anyone who violates federal or state recording laws may face jail time, a fine, or even an order to pay damages in a civil lawsuit.
Criminal Penalties
A person who violates the federal Wiretap Act faces a possible sentence of up to five years in prison, a fine of $500, or both. (18 U.S.C. § 2511.)
A person who violates a state law prohibiting secret recording of conversations will face the penalty prescribed by that law. Virtually every state imposes some criminal penalty for violations of its secret recording law. For example, a person violating California’s law faces a possible misdemeanor conviction, a one-year prison sentence, and a $2,500 fine. (Cal. Penal Code § 631.)
Civil Penalties
In most states where taping someone who hasn't consented to the recording is illegal, the recorded person can sue the individual doing the recording. Damages are available to a person who wins such a civil lawsuit.
See a Lawyer
Secret recordings carry real risks, and the repercussions vary from state to state. Consult a criminal defense lawyer in your state to find out what the law is and what the possible penalties are for violations before you consider secretly recording any conversations.