I did mean how they sound, thank you.
For this set I want to burn copies of the cds so they don't get wear and tear in my car, so I wanted to know if it mattered which version I use. (My headphones are broken so I couldn't really tell on my computer.)
I guess the reason for the WAV downloads is just a convenience courtesy thing, so people don't have to transfer the 6 discs to their computer (?) And since FLAC would have probably been difficult for a lot of people they just went with the WAV.
Anyway, thanks for the explanation on the formats!