They will be sampled into the PSP because Traxxpad dose not use .wav but I can still use .wav files and make then into Traxxpad banks by sampling them into it. Don't worry, the quality is great. If you have your USB cable for your psp just hook that up and download the kits from the Traxxpad Drumkits area (Traxxpad saves them really small) and then unzip the file with winrar, then you will see a folder. Take that whole folder and drop it in your psp in the folder where all of your saved games go. Then go to the Rtist mode and lode the bank. Those were sampled from my personal .wav sounds and if you hook it up to some goods speakers, you will see the quality is all there.
Did you have a specific request?