EXHIBIT 1

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k) (1) (iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D dated July 13, 2009 (including amendments thereto) with respect to the Common Stock of MRV Communications, Inc. This Joint Filing Agreement shall be filed as an Exhibit to such Statement.

Dated: July 13, 2009

Prescott Group Capital Management, L.L.C.
By:	/s/ Phil Frohlich
	Phil Frohlich, Managing Member
Prescott Group Aggressive Small Cap, L.P.
By:	Prescott Group Capital Management, L.L.C., its general partner
By:	/s/ Phil Frohlich
	Phil Frohlich, Managing Member
Prescott Group Aggressive Small Cap II, L.P.
By:	Prescott Group Capital Management, L.L.C., its general partner
By:	/s/ Phil Frohlich
	Phil Frohlich, Managing Member
Phil Frohlich
By:	/s/ Phil Frohlich
	Phil Frohlich

ANNEX A

Date	Shares Purchased/ (Sold)		Price Per Share		Total Cost
5/14/2009		55,606	$	0.46	$	25,642
5/14/2009		50,000	$	0.47	$	23,508
5/15/2009		133,929	$	0.46	$	61,741
5/15/2009		800	$	0.47	$	376
5/28/2009		14,109	$	0.48	$	6,809
6/8/2009		4,300	$	0.51	$	2,179
6/16/2009		340,692	$	0.39	$	133,169
6/16/2009		913,000	$	0.40	$	365,354
6/16/2009		750,200	$	0.42	$	315,850
6/16/2009		1,330,704	$	0.43	$	569,361
6/16/2009		238,996	$	0.44	$	105,154
6/16/2009		218,600	$	0.46	$	99,689
6/16/2009		161,000	$	0.47	$	74,873
6/16/2009		139,800	$	0.48	$	67,244
6/16/2009		200	$	0.49	$	98
6/16/2009		200	$	0.50	$	99
6/16/2009		151,691	$	0.51	$	76,612
6/16/2009		200	$	0.52	$	104
7/8/2009		7,040	$	0.42	$	2,957
7/8/2009		36,500	$	0.43	$	15,520
7/8/2009		116,460	$	0.44	$	50,676
7/9/2009		80,000	$	0.44	$	34,808