AGREEMENT TO FILE AMENDMENT NO. 9 TO SCHEDULE 13D JOINTLY

Exhibit 18

AGREEMENT TO FILE AMENDMENT NO. 9 TO SCHEDULE 13D JOINTLY

(as required by Item 7 of Schedule 13D)

The undersigned persons hereby agree that this Amendment No. 9 to the Schedule 13D filed by themselves with the Securities and Exchange Commission on Monday, July 21, 2008, and any amendments thereto, may be filed in a single statement on behalf of all such undersigned persons, and further, each such undersigned person designates Xxxxxx X. Xxxxxxxxxx as its agent and attorney-in-fact for the purpose of executing any and all such reports required to be made by it with the Securities and Exchange Commission.

IN WITNESS WHEREOF, the undersigned hereby execute this Agreement as of July 21, 2008.

Dated: July 21, 2008	AEC ASSOCIATES L.L.C.
	By:  Yucaipa One-Stop Partners, L.P.
	Its:  Managing Member
		By:		/s/ Xxxxxx X. Xxxxxxxxxx
				Name:  Xxxxxx X. Xxxxxxxxxx
				Its:   Vice President and Secretary

Dated: July 21, 2008	DIGITAL ON-DEMAND, INC.
		By:		/s/ Xxxxx Xxxxxxxxx
				Name:  Xxxxx Xxxxxxxxx
				Its:   Chief Financial Officer and Secretary

Dated: July 21, 2008	YUCAIPA ONE-STOP PARTNERS, L.P.
	By:  Yucaipa AEC Associates, L.L.C.
	Its:  General Partner
		By:		/s/ Xxxxxx X. Xxxxxxxxxx
				Name:  Xxxxxx X. Xxxxxxxxxx
				Its:  Vice President and Secretary

Dated: July 21, 2008	YUCAIPA AEC ASSOCIATES, LLC
	By:  OA3, LLC
	Its:  Managing Member
		By:		/s/ Xxxxxx X. Xxxxxxxxxx
				Name:  Xxxxxx X. Xxxxxxxxxx
				Its:  Vice President and Secretary

Dated: July 21, 2008	OA3, LLC
	By:			/s/ Xxxxxx X. Xxxxxxxxxx
				Name:  Xxxxxx X. Xxxxxxxxxx
				Its:  Vice President and Secretary
Dated: July 21, 0000	XXXXXX X. XXXXXX
	By:			/s/ Xxxxxx X. Xxxxxx
				Xxxxxx X. Xxxxxx