Here's the Cali code section which provides for $.25 per copy page and $.50 per page from microfilm and the like. Also, their attorney can subpoena the records or get them in discovery at the rates the court rules allow, which is usually $.10 per page for regular copies.
(a) Notwithstanding Section 5328 of the Welfare and
Institutions Code, and except as provided in Sections 123115 and
123120, any adult patient of a health care provider, any minor
patient authorized by law to consent to medical treatment, and any
patient representative shall be entitled to inspect patient records
upon presenting to the health care provider a written request for
those records and upon payment of reasonable clerical costs incurred
in locating and making the records available. However, a patient who
is a minor shall be entitled to inspect patient records pertaining
only to health care of a type for which the minor is lawfully
authorized to consent. A health care provider shall permit this
inspection during business hours within five working days after
receipt of the written request. The inspection shall be conducted by
the patient or patient's representative requesting the inspection,
who may be accompanied by one other person of his or her choosing.
(b) Additionally, any patient or patient's representative shall be
entitled to copies of all or any portion of the patient records that
he or she has a right to inspect, upon presenting a written request
to the health care provider specifying the records to be copied,
together with a fee to defray the cost of copying, that shall not
exceed twenty-five cents ($0.25) per page or fifty cents ($0.50) per
page for records that are copied from microfilm and any additional
reasonable clerical costs incurred in making the records available.
The health care provider shall ensure that the copies are transmitted
within 15 days after receiving the written request.
http://www.leginfo.ca.gov/cgi-bin/displaycode?section=hsc&group=123001-124000&file=123100-123149.5
