[Coco] Drive issue

[Daniel Campos]

Seeking counsel with the disk drive masters here. :-)

I'm trying to dump some very very old disks that I grabed with a friend 
to my CoCoSDC, but I think I have a problem in my hands...
I have a double drive unit that has two TEAC FD-55FV-13-U drives. These 
appear to be 720Kb drives (the fabled DSQD drives). I can DSKINI 
perfectly and SAVE and LOAD any DD disks on them BUT I can not read any 
disk originally created on a 180Kb drive.
There is any way I can make these drives read correctly the disks 
created on an original CoCo drive ?

Thanks!
Daniel