Originally Posted By Diet Go Go Fan
Changing the RAM size has no effect. I just found out that the "CoCo 1" driver will not load tapes.

Thank you all, for trying to help me.

Has no effect for what?
The RAM size between the coco and coco3 machine is different.
It is easier to give us more informations.

coco driver/tape

1. Which coco driver tried you now exactly?
2. Which tape (program/game title) have you tried?
3. Which tape format (.cas or .wav)?