Just remember Coco Checker is for Coco 1 and 2 ONLY. Not for Coco 3s. -[ Al ]- -----Original Message----- From: Daniel Campos "The CoCo Checker" it's a good one that checks up to 64Kb and also recognizes if the machine has only 16Kb or 32Kb. http://www.colorcomputerarchive.com/coco/Disks/Utilities/Coco%20Checker,%20The%20(Spectrum%20Projects).zip Daniel