I have had this product for at least 8 years now. It has never failed. It comes in handier now because I still have items that are SVHS. Such as a PS2 a SVHS VCR and a couple other older items. My home theatre only has 2 optical outputs so I can have 4 units plugged into this and have them all on 1 optical output on the Sigma. Im just going to purchase a SVHS to HDMI converter because todays HDTVs really dont have SVHS inputs anymore. Anyhow this is a excellent item. Too bad I see its now unavailable! I bought mine from Crutchfield years ago.