Help!, Boss sp 202 dr sample Options

[Jake-tungstem]

Hi,
i recently bought a Boss sp 202 as a starter sampler. I have several questions that aren't answered in the user manual.
1. What format (eg. .wav, .mp3 ect) do files i upload to the sampler have to be
2. i have a four mega-byte memory card that comes with it, it is reverse to normal smart media cards haveing a slanted corner in the opposite side. For this reason it wouldn't work in my computer. I cut the other corner of so it could work in my card drive and i was then able to place files on the card. Then when i put the card back into the sampler, it failed to recognise the card. Is this due to me cutting the corner off or (the earlyer question) the wrong file format.

please help i've read the manual five times over

JaKe