I bought my sp-404 some weeks ago and I've been having fun making beats with the microphone and the preloaded samples, but my joy was not complete until my CF card finally arrived yesterday. During the time it took for me to pick some samples, yank them on the card and try to upload them, I was still happy. But then it didn't work. I've already double-checked all the specs for the upload. Now I'm pissed!
I'm using a Dane-Elec 1gb card which was supposed to be compatible. I read it was somewhere and I didn't want to buy a more standard card since it'd be more expensive and I'd get a bigger chance of getting a fake one. Actually, the SP-404 did format it and I could record into it with the microphone.
The problem is lying on the sample communication part: it says EMP everytime I try to Import. Yesterday I could get to a point where it seemed like the SP-404 was actually seeing the files but I pointed it to pad and it said FUL.
I also couldn't get the Roland samples out with the Export function (it did export, but I couldn't find the Wav files).
I'm using correct filenames, formats and sample rates. There must be something ridiculous I'm forgetting to do.
I should also mention that there are huge "file" files on the root of the memory stick that don't take up space and create themselves with mysterious filenames. Does this happen normally?
Please, someone, help me. You'd cry lasers if you saw my current disappointment.

