what exactly is "too many"?
as far as I know cast-size is unlimited and only constraint to memory and/or
I remember having used external casts with close to 200 MBs.
Just take care it doesn't crash or get lost... security reasons like this
call for small cast modules.
You could also use linked images, i.e. cast members with an external file
reference, so your imges reside as imagefiles on disk and get loades when
In any case: With huge casts it is good practice to establish some
reasonable "preload" and "unload" routines and to make sure that ...