Hello, my name is Rusty. MP3 is the most popular format, you definitely want to rip your CDs to mp3. .wma is Windows Media Audio, and is less compatible with some software and players. FLAC is a compressed format, hardly compatible. The others are Apple formats.
When you rip, you want to go to .mp3, 44.1khz. That is a CD quality mp3 and will work best with your Sony, and will preserve your songs for use on other devices in the future.