Hi i want to burn an audio book to disc.the audio book is 619.5mb and the blank cd is 700mb but when i try to burn it i'm told that it can't fit on one cd as you can imagine there might only be 5 mins on the next cd,why won't it fit when the cd is larger than the file and is there any way i can make it fit, i have tried a data cd but it does not play on my car player