What formats can I play on Sonos?

I recently bought an album on Bancamp in FLAC format. I cannot play it as the sample rate is too high. All the other FLAC albums I bought at the same time are fine except this one. I have the option of downloading the album again in a different formats including ALAC and MP3 320. I was wondering if anyone had any suggestions about which would be likely to avoid this problem and would be compatible with Sonos. Thanks in advance.