[Top Jimmy]

1. You can use iTunes to batch convert to simple wavs.
2. You can't.

In iTunes, set the Import Settings to Wav and Auto, and uncheck the "Copy files when adding" option under the Advanced tab. Drag all your samples into iTunes, select them all and choose "Create Wav version" under the Advanced menu. Once done copying, select all of the sample (original and copies) and delete, sending the new files to the trash. Fish the samples out of the trash bin and you will now have simple wav files.