See
Burning a audio CD from your MP3's
Also do a search for burn or CD in Tips & Tricks section. There's a no. of search buttons on this page.
Xtra tips, burn the CD at minimum speed so there won't be any problem with playback. Get reasonable/good quality CD-R's so they last you. Cheap ones might only last 2-3 years or even less before they start to deteriorate. Good/Best ones will last perhaps 25 to 50 years if they're looked after.
For a decent burner application, all you should need to do is drag the files to the application & arrange them in the order you want (U might also wish to specify the pause or silence period in between songs.) Oh before you do that select audio cd; NOT mp3 disk! Then press the burn button.
A 74 min cd (650 MB) will hold about 74 mins & 14 secs. An 80 min (700 MB) CD will hold 79 mins & 54 secs. of music.