sfrecord~ WAV files compressed?

azs's icon

I am building an interface that will record wav files to be used with a specific device (ladyada's wave shield and arduino.) I have attached the part of my patch that records the files. When I try to open these files with the wave shield, I get an error that saying "compression not supported." I was told that this means the files are compressed and that they should not be compressed. But are they compressed?

Max Patch
Copy patch and select New From Clipboard in Max.