Ken, I don't know of any CAM packages that will backannotate a layout database change back into Allegro. And, I'm not too sure I would even try that. The Allegro database is my "bible" database. Right? But,,,, most any CAM package can generate the gerber files for you, and you could import those back into Allegro, and run convert (and connect) back into Allegro. I do know that Valor is working to have the bi-directional capability with Allegro, but I don't see it as a very viable option personally. :) I do like the fact that I can look at the databse in Valor and have it give me the manufacturing concerns I created with symbols, padstacks, plane fills, etc, etc. Then, I go into the symbols or padstacks or plane fills, etc and modify it so it isn't so much a concern. (Again, personal preference) Good luck, and please let me know if you get info (other than Valor's) for a "truely" bi-directional database converter. Mitch Morey Sr PCB Designer NSI Communications San DIego CA (619)657-5338 >>> Ken Patel <[log in to unmask]> 06/11/98 03:33pm >>> Is there any CAM program which support Cadence Allegro? I want to modify layout and database files along with artwork files? CAM350 can not support Cadence Allegro at this time. re, ken patel ______________________________________________________ Ken Patel Phone: (408) 490-6804 1708 McCarthy Blvd. Fax: (408) 490-6859 Milpitas, CA 95035 Beeper: (888) 769-1808 ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################ ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################