CORRECTING and REPLACING Sigma Designs, Inc. to Hold First Quarter Conference Call

In conference call dial-in information section of release, the date should read: Monday, June 4, 2007 (sted May 4). The corrected release reads: SIGMA DESIGNS, INC. TO HOLD FIRST QUARTER CONFERENCE CALL Sigma Designs (Nasdaq:SIGM), a leader in digital media processing for consumer appliances, announced today that the Company will be discussing financial results for their first fiscal quarter during a conference call on Monday, June 4, 2007. Thinh Tran, chief executive officer, Tom Gay, chief financial officer, and Ken Lowe, vice president of strategic marketing will discuss the revenue and earnings for the quarter as well as the business outlook, followed by a question and answer session. The release of our financial results will cross the wire at the close of market on the same day. Participants can dial into the conference call as follows: Date: Monday, June 4, 2007 Time: 5:00 pm (Eastern time) / 2:00 pm (Pacific time) Dial-in: 888-396-2384 or 617-847-8711 for international Code: 86263968 The call will also be webcast live by CCBN and can be accessed at Sigma’s web site at www.sigmadesigns.com/. The webcast is also being distributed over CCBN’s Investor Distribution Network to both institutional and individual investors. Individual investors can listen to the call through CCBN’s individual investor center at www.fulldisclosure.com or by visiting any of the investor sites in CCBN’s Individual Investor Network. Institutional investors can access the call via CCBN’s password-protected event management site, StreetEvents (www.streetevents.com). An audio replay of the call will be available shortly thereafter the same day and will remain on-line for one week. The replay number is 888-286-8010 (617-801-6888 for international) using passcode 82232228. For further information, please see the link on our website at www.sigmadesigns.com or email investor relations at IR@sdesigns.com. About Sigma Designs, Inc. Sigma Designs (Nasdaq:SIGM) specializes in silicon-based media processors for IPTV set-top boxes, digital media receivers, high-definition DVD players, HDTV and portable media players. The company’s award-winning REALmagic® Video Streaming Technology is used in a variety of consumer applications providing highly integrated solutions for high-quality decoding of H.264, WMV9, MPEG-4, MPEG-2 and MPEG-1. Headquartered in Milpitas, Calif., the company also has sales offices in China, Europe, Hong Kong, Japan, Korea and Taiwan. For more information, please visit the company’s web site at www.sigmadesigns.com/.