It's a breeze and it worked perfectly every time I tried it. After that you can extract the unused portion to save memory. However, for some reason the SU200 took its sweet time deleting samples. Samples can also be set to scale play, where the same sample will be mapped across the eight pads at the pitches of a major scale. All samples can be assigned to a MIDI keyboard.
Time stretching and resampling are also available.
The time-stretching function works well, with noise being introduced only after a 20 or so BPM change, but you can only stretch a sample to match the speed of an existing sample. I'd prefer to be able to set the time stretch to any tempo. During resampling, you can play any combination of pads with effects and scratching if desired. A ribbon controller's scratch effect doesn't emulate vinyl scratching very well, but it isn't entirely useless. Finally, there is a Time button that changes the tempo of a sample and introduces distortion.