4 hours of tape - the parents only edited and used the 45 minutes you have it backwards. Brain operations are delicate things - there was risks to going back in and removing implant.
No, 45 minutes is how long Dr. Cranford spent with her. As opposed to the "evil" Dr. Hammesfahr who spent 10 hours with her. Judge Greer ruled Terri to be PVS based on Cranford's testimony.