EXHIBIT 99.1

AVID TECHNOLOGY, INC.

(in thousands except per share data, unaudited)

Reconciliations of GAAP financial measures to Non-GAAP financial measures:
Three Months Ended March 31, 2012
	Gross		Operating			Operating			Tax			Net
	Profit		Expenses			Loss			Provision			Loss
GAAP	$	77,564	$	89,826		$	(12,262	)	$	521		$	(12,977	)
Amortization of intangible assets	650		(1,611		)	2,261						2,261
Restructuring costs, net			(168		)	168						168
Acquisition and other costs (a)			(231		)	231						231
Tax adjustment									253			(253		)
Stock-based compensation included in:
Cost of products revenues	94					94						94
Cost of services revenues	157					157						157
Research and development expenses			(306		)	306						306
Marketing and selling expenses			(1,261		)	1,261						1,261
General and administrative expenses			(1,315		)	1,315						1,315
Non-GAAP	$	78,465	$	84,934		$	(6,469	)	$	774		$	(7,437	)
Weighted-average shares outstanding - diluted												38,662
Non-GAAP net loss per share - diluted												$	(0.19	)
Three Months Ended December 31, 2011 (Revised)
	Gross		Operating			Operating			Tax			Net
	Profit		Expenses			(Loss) Income			Benefit			(Loss) Income
GAAP	$	99,439	$	101,290		$	(1,851	)	$	(2,318	)	$	(30	)
Amortization of intangible assets	657		(2,063		)	2,720						2,720
Restructuring costs, net			(8,770		)	8,770						8,770
Tax adjustment									750			(750		)
Stock-based compensation included in:
Cost of products revenues	2					2						2
Cost of services revenues	156					156						156
Research and development expenses			(300		)	300						300
Marketing and selling expenses			(1,105		)	1,105						1,105
General and administrative expenses			(985		)	985						985
Non-GAAP	$	100,254	$	88,067		$	12,187		$	(1,568	)	$	13,258
Weighted-average shares outstanding - diluted												38,584
Non-GAAP net income per share - diluted												$	0.34
(a) Represents costs included in general and administrative expenses

AVID TECHNOLOGY, INC.

(in thousands except per share data, unaudited)

Reconciliations of GAAP financial measures to Non-GAAP financial measures:
Three Months Ended September 30, 2011 (Revised)
	Gross		Operating			Operating			Tax			Net
	Profit		Expenses			(Loss) Income			Provision			(Loss) Income
GAAP	$	88,365	$	92,739		$	(4,374	)	$	2,672		$	(7,549	)
Amortization of intangible assets	685		(2,159		)	2,844						2,844
Restructuring costs, net			(2,707		)	2,707						2,707
Legal settlement and acquisition-related costs (a)			(163		)	163						163
Tax adjustment									1,008			(1,008		)
Stock-based compensation included in:
Cost of products revenues	168					168						168
Cost of services revenues	63					63						63
Research and development expenses			(435		)	435						435
Marketing and selling expenses			(1,051		)	1,051						1,051
General and administrative expenses			(1,970		)	1,970						1,970
Non-GAAP	$	89,281	$	84,254		$	5,027		$	3,680		$	844
Weighted-average shares outstanding - diluted												38,530
Non-GAAP net income per share - diluted												$	0.02
Three Months Ended June 30, 2011 (Revised)
	Gross		Operating			Operating			Tax			Net
	Profit		Expenses			Loss			Benefit			Loss
GAAP	82,368		93,459			(11,091		)	(590		)	(11,146		)
Amortization of intangible assets	685		(2,161		)	2,846						2,846
Restructuring costs, net			(162		)	162						162
Legal settlement and acquisition-related costs (a)			(392		)	392						392
Loss on sales of assets			(597		)	597						597
Tax adjustment									245			(245		)
Stock-based compensation included in:
Cost of products revenues	110					110						110
Cost of services revenues	277					277						277
Research and development expenses			(427		)	427						427
Marketing and selling expenses			(1,356		)	1,356						1,356
General and administrative expenses			(1,846		)	1,846						1,846
Non-GAAP	$	83,440	$	86,518		$	(3,078	)	$	(345	)	$	(3,378	)
Weighted-average shares outstanding - diluted												38,413
Non-GAAP net loss per share - diluted												$	(0.09	)
(a) Represents costs included in general and administrative expenses

AVID TECHNOLOGY, INC.

(in thousands except per share data, unaudited)

Reconciliations of GAAP financial measures to Non-GAAP financial measures:
Three Months Ended March 31, 2011 (Revised)
	Gross		Operating			Operating			Tax		Net
	Profit		Expenses			(Loss) Income			Provision		(Loss) Income
GAAP	$	87,166	$	90,692		$	(3,526	)	$	957	$	(4,783	)
Amortization of intangible assets	666		(2,145		)	2,811					2,811
Restructuring recoveries, net			1,476			(1,476		)			(1,476		)
Tax adjustment									55		(55		)
Stock-based compensation included in:
Cost of products revenues	139					139					139
Cost of services revenues	268					268					268
Research and development expenses			(472		)	472					472
Marketing and selling expenses			(1,218		)	1,218					1,218
General and administrative expenses			(2,036		)	2,036					2,036
Non-GAAP	$	88,239	$	86,297		$	1,942		$	1,012	$	630
Weighted-average shares outstanding - diluted											38,686
Non-GAAP net income per share - diluted											$	0.02