Huynh; Looks like the .cdi file extention is a "Phillips Compact Disk Interactive file" found that information here: http://whatis.techtarget.com/fileFormatC/0,289938,sid9,00.html A useful site that lists "every file format in the world" <>< Larry Fisk Fisk Computers Fruitvale, Idaho ----- Original Message ----- From: "Huonga3TCV" <[log in to unmask]> To: <[log in to unmask]> Sent: Wednesday, March 19, 2003 7:16 AM Subject: [PCSOFT] file.cdi > Hi list, > What program is needed for opening file.cdi ? Thank you in advance. > Regards, Do you want to signoff PCSOFT or just change to Digest mode - visit our web site: http://freepctech.com/pcsoft.shtml