Stella: For the first item in your mail I can recommend the following suppliers of flex circuits. Locally in the USA 1)MEKTEC Corporation USA San Jose :(408)945-6666 Pennsylvannia:(610)889-2053 Denver:(303)280-0998 2) Sigma Circuit Incorporated 3510 Basset Street Santa Clara CA 95054 Phone: (408)654-5800 3) Adflex Solutions Internet Site: www.adflexinc.com In Japan a) Nitto-Denko Corporation Internet Site: www.nitto.co.jp The second item in your request about Rx274s compare to Gerber, the information I have is the following: Gerber Data is presented in two main format. The first is RS-274-D(old version) and in this one, in order to load your data you need all the layers and the aperture list as a separate file. It can ocurr that every layer have a unique aperture list associated with it, so you need to load all the layers plus the aperture(s) list. This old format is known as Gerber-D or Gerber. The other Gerber format, known as RS-274-X or simply Gerber-X, has the aperture list embedded in the layers files, so when you load the layers you automatically load the aperture list with it. Gerber-X is a more convenient format and based on my experience less trouble. regards Florencio To: TechNet @ IPC.ORG @ INTERNET cc: (bcc: Florencio Eiranova) From: es500yap @ PTS7.ORG (YAP CHOW LAN) @ INTERNET