To burn .iso files on CD disks use cdburn utility
Usage:
<DVDDriveLetter>: ISOFileName
Example:
cdburn e: d:\os\Win7_amd64.iso to burn the image on CD disk, where e: is CDROM
Burning ISO files to CD/DVD media
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Usage:
<DVDDriveLetter>: ISOFileName
Example:
cdburn e: d:\os\Win7_amd64.iso to burn the image on CD disk, where e: is CDROM