1000--->computer---->1000 ERROR?

i transfered shit i made on the 1000 to a cf card then the computer it wont transfer back to the cf card tho?

how do u go to a folder on the 1000 and load just certain from it?
i heard the error is cuz too many things are in 1 folder-thats cool except i dont know every sound file in a specific program to make separate folders...

OS version?

i have about 500 wavs and 20 pgms in my new project folder. i dont have probs with that.