Affirmed. See Jones v. State, 635 So.2d 41, 42-43 (Fla. 1st DCA 1994); Hedrick v. State, 543 So.2d 873, 874 (Fla. 3d DCA 1989)(“The plea agreement was fully explained to appellant in open court and his response indicates he was fully cognizant that he was expressly waiving his right to seek early release from his three years of detention, by appeal or otherwise”).